LIST No. 2347 
 
 PRICE LIST 
 
 AND BRIEF WORKING INSTRUCTIONS 
 
 AUTOTYPE 
 
 CARBON AND CARBRO 
 PROCESSES 
 
 THE AUTOTYPE COMPANY LIMITED 
 Autotype Works, Brownlow Road 
 West Ealing :: London, W.I3 
 
 Telephone ... EALing 2691 (4 lines) 
 
 AUTOTYPE 
 
BRIEF WORKING INSTRUCTIONS 
 
 FOR 
 
 THE AUTOTYPE CARBON 
 PROCESS 
 
 T HE) basis of the Autotype Carbon process is the insolubilisation by 
 Ught of pigmented gelatine sensitised with Bichromate. 
 
 Photographs can be reproduced in a variety of colours and Pigment 
 Papers chosen to suit the photographer’s taste. A list of colours will be 
 found later in the book, and a Colour Chart can be supplied for a nominal 
 charge. 
 
 OUTLINE OF PROCESS 
 
 Sensitive Pigment paper exposed to light behind a negative is insolubilised 
 in proportion to the varying densities of the negative. 
 
 After exposure the Pigment paper is soaked in cold water and then 
 squeegeed into contact with a piece of gelatine-coated Transfer paper. 
 
 Development is carried out in warm water, which dissolves away all the 
 pigmented gelatine not insolubilised during exposm-e. 
 
 SENSITISING 
 
 Immerse the Pigment paper in a solution of Bichromate of Potassium, 
 made up as follows : 
 
 Dissolve 1 oz. (50 grams) of pure Potassium Bichromate in 20 ozs. (1,000 c.c.) 
 of water. When cold, filter through muslin and bottle as “ stock solution.” 
 This solution can be used at full strength when sensitising for exposure under 
 contrasty negatives — at half strength for normal negatives, and 1-4 parts of 
 water for thin, soft negatives. 
 
 Immerse the Pigment paper in the solution for 2 minutes at a temperature 
 of 65 deg. Fahrenheit, remove and lay coated side downwards on a sheet of 
 glass, squeegee off surplus solution from the back, and hang up to dry in 
 the dark. Drying should be completed within 2-2^ hours. 
 
 EXPOSING THE PIGIVIENT PAPER 
 
 Fit the negative with a mask and place in a printing frame with a piece 
 of sensitive Pigment paper of a size slightly larger than the mask opening. 
 Exposure must be judged by an Actinometer, as no visible change of the 
 Pigment paper is noticeable. According to the density of the negative so 
 one judges how many Actinometer tints are necessary — usuall}^ one tint 
 for thin negatives — two for medium, and three or four for dense ones are 
 necessary. 
 
 MOUNTING 
 
 Soak a piece of Single Transfer paper in cold water of about 60 deg. 
 Fahrenlieit until quite limp, then soak the exposed Pigment paper in cold 
 
 2 
 
water, and before it is quite limp, bring the two papers together and squeegee 
 into contact. Place between Absorbent Boards or Blotting Paper for about 
 10 minutes and then proceed to develop. 
 
 DEVELOPIViENT 
 
 The development of a Carbon Print is a simj^le matter, no chemicals being 
 required. The pigment paper on the support paper is placed in a dish of 
 warm water. Start with a temperature of about 95/100 deg.’ Fahr. Keep 
 the two papers, still adhering, well covered by the warm water, and wait 
 until the pigment commences to ooze round the edges. As soon as this 
 occurs, carefully lift one corner of the pigment paper, and keeping them 
 under water, steadily strip the two apart. The support paper will now be 
 seen to be covered with a thick coat of pigment. 
 
 Gently splash the face of the print with the warm water, and as the picture 
 begins to reveal itself the splashing may be local, if it is desired to reduce 
 any particular portion. Should the print be too dark all over, the temperature 
 of the water may be increased. 
 
 When development is complete, the picture is rinsed in cold water and 
 placed in a 3 per cent, solution of potash alum until the bichromate stain 
 has disappeared. Finally, the print should be washed thoroughly in order 
 to remove the alum. 
 
 OTHER SUPPORTS 
 
 Carbon prints may also be developed directly on such non-porous materials 
 as glass, opal glass, aluminium, celluloid, etc., etc. 
 
 DOUBLE TRANSFER 
 
 Prints made by the method just described will be reversed unless printed 
 througn the “ wrong ” side of a film negative or from reversed negatives 
 specially made for the purpose. By the Double Transfer method, however, 
 prints are obtained the correct way round from all ordinary negatives. 
 
 The Pigment paper is printed as previously described, but is squeegeed 
 and developed on a Waxed Temporary Support instead of a Transfer paper. 
 The “ temporary supports ” usually employed are ; 
 
 (1) Flexible Temporary Support, No. 112 (Thick) ; a stout, hard coated 
 
 paper giving a print with a slightly glazed surface. 
 
 (2) Matt Surface Opal Glass : giving prints with a matt surface. 
 
 Both of these vSupports must be prepared with Autotype Waxing Solution 
 (which must be done at least an hour before use) to enable the print to be 
 transferred to a final paper. 
 
 The developed print, on its Temporary Support 112/Thick, is dried and 
 then re-soaked in cold water. Now take a piece of Double Transfer paper, 
 soak it in cold water until thoroughly limp, transfer to warm water at 90 deg. 
 Fahrenheit until the coating feels slimy, and then bring into contact with 
 the Carbon print on the Temporary Support and squeegee together. Hang 
 up, and when dry the Support paper will strip from the Temporary Support. 
 The Temporary Support may be re-waxed and used again. 
 
 3 
 
BRIEF WORKING INSTRUCTIONS 
 
 FOR 
 
 THE AUTOTYPE CARBRO 
 PROCESS 
 
 C ARBRO is a special process devised for producing Carbon prints from 
 Bromide prints — hence the name CARBRO. 
 
 The basis of the process is the chemical action which takes place 
 between the surface of the Pigment Paper and the bromide print itself ; 
 this insolubilises the pigment and takes the place of the exposure to hght 
 required by the Carbon process. It has the great advantage that enlarged 
 or reversed negatives do not have to be made. 
 
 All Autotype Pigment Papers require the same time of immersion in 
 Bath No. 1, namely 3 minutes. 
 
 The contrast of the resulting print is very much under control by simply 
 varying the time of immersion in Bath No. 2. 
 
 The following are the stock articles required ; 
 
 A good Bromide Print Squeegee 
 
 Pigment Paper Dishes 
 
 Support Paper 
 
 A flat squeegee is best. The dishes should be porcelain or enamel. 
 
 The working baths are made up from the following Concentrated Solutions : 
 
 Concentrated Solution No. 1 
 
 Potassium Bichromate 
 ,, Ferricyanide 
 
 ,, Bromide 
 
 Distilled Water 
 Concentrated Solution No. 2 
 
 Glacial Acetic Acid 
 Hydrochloric Acid (pure) 
 Formaldehyde 40 per cent. 
 
 1 oz. or 10 grammes 
 1 oz. or 10 grammes 
 1 oz. or 10 grammes 
 20 ozs. or 200 c.c. 
 
 1 oz. or 10 c.c. 
 
 1 oz. or 10 c.c. 
 
 22 ozs. or 220 c.c. 
 
 In making up the Concentrated Solution No. 2, the addition of H or 
 12 c.c. of water will prevent any precipitation in cold weather. 
 
 Working Bath No. 1 
 
 No. 1 Concentrated Solution 6 ozs. or 100 c.c. 
 
 Water 18 ozs. or 300 c.c. 
 
 Working Bath No. 2 
 
 No. 2 Concentrated Solution 1 oz. or 10 c.c. 
 
 Water 32 ozs. or 320 c.c. 
 
 (The English and Metric quantities are not equivalents, 
 but are proportionate) . 
 
 The No. 1 Bath may be used for a considerable time. It is advisable to 
 pass it through muslin after use. 
 
 The No. 2 Bath should be frequently renewed, as it is altered by the No. 1 
 Solution transferred to it on each immersion. The baths should be used at 
 a temperature of 60 to 65 deg. Fahr. 
 
 4 
 
THE PROCESS 
 
 First place the bromide print in cold water, then take a piece of pigment 
 paper cut about half an inch larger than the bromide, and immerse in No. 1 
 Bath for 3 minutes, take out, and holding it by one corner, allow it to drip 
 for 15 seconds, then immerse in No. 2 Bath for a varying time, from 10 to 
 30 seconds, according to the result required. Depth and brightness are 
 the result of a short immersion, an increase of time giving a proportionate 
 increase in softness of the result. 
 
 Place the wetted bromide print on a level sheet of glass, pour a small 
 pool of cold water upon it, then withdraw the pigment paper from the No. 2 
 Bath and immediately squeegee into contact, with the squeegee held at an 
 angle of 45 deg. Place between grease-proof papers and allow to remain 
 for 15 minutes. 
 
 Take a piece of support paper cut slightly larger than the pigment paper, 
 and soak in cold water for at least 5 minutes — complete wetting is necessary. 
 
 After wetting the support paper, lay it face upwards on a sheet of glass. 
 Now take the pigment paper and bromide, and by raising one corner of the 
 former steadily pull the two apart. Place the pigment paper face downwards 
 on the support paper and squeegee the two into contact. Place between 
 dry absorbent boards or blotting paper and allow to remain from 20 to 
 40 minutes. The longer they remain in contact the darker will be the final 
 result. The bromide print, now bleached, is put into a dish of cold water, 
 and washed by frequent changes of water for about 20 minutes. 
 
 If it is desired to make additional Carbros the same bromide print can be 
 made to serve a number of times. All that is necessary is to wash it in cold 
 water and re-develop in ordinary photographic developer (no fixing is 
 required), when it can be used again exactly as at first. It should be noted, 
 however, that a slight increase in contrast takes place when the bromide 
 print is used more than once. 
 
 Development is carried out in exactly the same way as in CARBON work, 
 except that the developing water should have a temperature of 90 deg. Fahr. 
 See detailed description on page 3. 
 
 NOTES AND OBSERVATIONS 
 
 The time of immersion of 3 minutes in the No. 1 Bath is apphcable to all 
 pigment papers. Under-immersion in No. 2 Bath is indicated by heavy 
 shadows lacking detail. 
 
 During hot weather, should the temperature of the solutions rise to much 
 above 65 deg., the time can be reduced to 2|-2 minutes. 
 
 Bromide papers are usually supercoated in order to protect the silver 
 emulsion from stress, etc. Tliis supercoating sometimes causes loss of 
 quality in the highlights of the Carbros. Un-supercoated papers should 
 therefore be employed and can be obtained from the Autotype Company. 
 
 We do not advocate working from other than the best Bromide papers ; 
 and although Gaslight papers of the Velox type can be used after a pre- 
 paratory bleaching and re-developing, the results will not be so pleasing. 
 
 5 
 
PRICE LIST 
 
 (POSTAGE EXTRA ON ALL ITEMS). 
 
 (A) TRIAL OUTFITS FOR CARBON OR CARBRO. 4f ins x 6^ ins. 15 . 
 Contain all materials necessary for an introduction to Carbon or Carbro 
 printing. Please specify when ordering which Process is required. 
 
 (A) PIGMENT PAPERS, INSENSITIVE 
 
 93 Terra Cotta 
 
 94 Ivory Black 
 
 100 Standard Brovv^n 
 
 103 Warm Black 
 
 104 Engraving Black 
 
 105 Sepia 
 
 106 Red Chalk 
 
 107 Transparency 
 137 Olive Brown 
 
 140 Bottle Green ' 
 
 145 Grey Green 
 
 151 Sea Green 
 
 152 Dark Blue 
 162 Brown Black 
 
 165 Italian Green 
 
 166 Rembrandt Sepia 
 
 168 Inkpot 
 
 169 Vandyke Brown 
 
 Whole Band 
 30 ins. X 12 ft. 
 (76 X 360 cms.) 
 
 Half Band 
 15 ins. X 12 ft. 
 (38 X 360 cms.) 
 
 Quarter Band 
 15 ins. X 6 ft. 
 (38 X 180 cms.) 
 
 18/- 
 
 10 /- 
 
 5/6 
 
 (A) PIGMENT PAPERS IN CUT PIECES 
 
 Supplied in packets containing One Dozen Sheets of one colour. 
 
 In 6^x8| ins. size and upwards, half-dozens may be supplied. 
 
 Sizes Per dozen 
 
 4|- ins. 9 xll cms. ... ... ... 1/3 
 
 4fx 6| ins. 12 x 16.5 cms. ... ... ... 2/3 
 
 6|x 8|ins. 16.5x21.5 cms 4/3 
 
 8 X 10 ins. 20 X 25 cms. ... ... ... 5/3 
 
 10 xl2 ins. 25 x 30 cms. ... ... ... 7/9 
 
 12 X 15 ins. 30 x 38 cms. ... ... ... 10/6 
 
 Also supplied in mixed packets containing one sheet each of the twelve 
 most popular colours. 
 
 GREY MATRIX PIGMENT PAPER FOR DYE TRANSFER PROCESSES 
 
 Whole Band .. 
 
 , . 30 ins. X 12 ft. 
 
 76 X 360 cms. 
 
 ... 26/3 
 
 Half Band 
 
 ,. 15 ins. X 12 ft. 
 
 38 X 360 cms. 
 
 ... 14/- 
 
 Quarter Band .. 
 
 . 15 ins. X 6 ft. 
 
 38 X 180 cms. 
 
 8/- 
 
 CUT SHEETS 
 
 3|- X 4|- ins. 
 
 9 xll cms. 
 
 
 2/3 
 
 4f X el ins. 
 
 12 X 16.5 cms. 
 
 
 ... 4/3 
 
 6| X 8| ins. 
 
 16.5 X 21.5 cms. 
 
 
 6/9 
 
 8 X 10 ins. 
 
 20 X 25 cms. 
 
 
 8/9 
 
 10 X 12 ins. 
 
 25 X 30 cms. . 
 
 
 ... 12/9 
 
 12 xl5 ins. 
 
 30 X 38 cms. . 
 
 
 ... 17/3 
 
 6 
 
SENSITISING 
 
 All Pigment Papers can be supplied ready sensitised up to size 30 ins. x 40 ins. 
 If suitably stored they will retain their sensitivity for 7 days. 
 
 Sensitising charge 6/- per dozen pieces up to 12 ins. x 15 ins. — prices for 
 larger sizes on application. 
 
 N.B. — Pigment Papers sold ready sensitised are liable to Purchase Tax. 
 
 (A) SINGLE TRANSFER PAPERS 
 
 In Bands, 12 ft. long (360 cms.). 
 
 No. 
 
 Width 
 
 Per Band 
 
 108 Medium Smooth White 
 
 36 ins. 
 
 17/- 
 
 110 White Crayon 
 
 30 „ 
 
 12/- 
 
 116 Thick Smooth White ... 
 
 36 „ 
 
 17/- 
 
 202 Rough Matt White 
 
 36 „ 
 
 17/- 
 
 (A) CUT PIECES 
 
 In Packets containing One Dozen Sheets of one variety. 
 
 Sizes Per Dozen 
 
 4x5 ins. 10x13 cms. ... ... ... ... 9d. 
 
 5x7 „ 13x18 „ 1/6 
 
 7x9 „ 18x23 „ 3/- 
 
 9 xll ,, 23x28 ,, 41 - 
 
 10^X121 „ 26x32 „ 6/- 
 
 121x151 „ 32x40 „ 8/3 
 
 (A) FINAL SUPPORT FOR DOUBLE TRANSFER 
 
 In bands 12 ft. long — 360 cms. 
 
 No. 
 
 76 Matt White Crayon ... 
 86 Medium Thickness, White 
 1160 Thick Smooth White ... 
 2020 Thick Rough White ... 
 
 Width 
 30 ins. 
 36 „ 
 
 36 „ 
 
 36 „ 
 
 Per Band 
 12 /- 
 17/- 
 17/- 
 17/- 
 
 (A) CUT PIECES 
 
 In packets containing One Dozen Sheets of one 
 Sizes 
 
 3ix 
 
 4i ins. 
 
 9x 
 
 11. 
 
 5 X 
 
 7 
 
 13x 
 
 18 
 
 7 X 
 
 9 „ 
 
 18x 
 
 23 
 
 8ix 
 
 lOi „ 
 
 21 X 
 
 26 
 
 lOix 
 
 12i „ 
 
 26 X 
 
 32 
 
 12ix 
 
 15i ,, 
 
 32 X 
 
 40 
 
 variety. 
 
 Per Dozen 
 9d. 
 
 1/6 
 
 3/- 
 
 4/- 
 
 61 - 
 
 8/3 
 
 (A) TEIViPORARY SUPPORT FOR DOUBLE TRANSFER No. 1 12 (Thick). 
 
 vSpecial Papers prepared with insoluble gelatine and lac solution, yielding 
 prints with medium gloss. May ‘be used repeatedly, only needing to be 
 rubbed over each time with waxing solution to ensure the stripping of the 
 prints. 
 
 Sizes Per Dozen 
 
 4x5 ins. 
 Six 7i „ 
 7ix 9i „ 
 9 xll ., 
 11 Xl3 „ 
 13 xl6 „ 
 
 10 X 13 cms, 
 14x18 „ 
 
 18x24 „ 
 
 23x28 „ 
 
 28x33 „ 
 
 33x40 „ 
 
 1/6 
 
 2/9 
 
 4/3 
 
 61 - 
 
 8/9 
 
 12 /- 
 
 7 
 
Sizes 
 
 17 X 20 ins. 43x50 cms. 
 
 18 X 23 „ 46x58 „ 
 
 24 x 30 „ 61x76 
 
 IPer Dozen 
 19 /- 
 22/6 
 39/- 
 
 (B) AUTOTYPE COLOUR CHART 
 
 16 mounted prints, one in each of the 16 most popul^ shades of Autot}"pe 
 Pigment Papers ... ... .... ... ... ... 4/- 
 
 (D) AUTOTYPE RETOUCHING LEADS 
 
 (British Made) used by leading Photographers throughout the rvorld. In four 
 grades : Nos. 1_C^.; 2 (HB) ; 3 (H) and 4 (HH). Per box doz.) 2/3 
 
 - Plus Purchase Tax. 
 
 (B) AUTOTYPE RETOUCHING MEDIUM 
 
 The most popular and reliable Medium on the market. Per bottle 1 /6 
 
 (c) ACTIN0METER8 Price 
 
 Disc ... ... ... ... ... ... 5/6 Refills 1/6 doz. 
 
 N.B. — Actinometer Refills are subject to Purchase Tax. 
 
 (c) OTHER APPARATUS AND MATERIALS 
 
 Flat Squeegees. 
 
 
 
 Length 5 ins. 
 
 
 4/- 
 
 „ 8 „ 
 
 
 5/9 
 
 12 „ 
 
 
 7/6 
 
 Waxing Compound, in cakes, for solution in turpentine. each 
 
 1/- 
 
 Waxing Solution, ready for use 
 
 5 oz. bottle 
 
 2/6 
 
 Waxing Solution, ready for use 
 
 per pint 
 
 6/6 
 
 Potassium Bichromate 
 
 per box 
 
 1/6 
 
 Greaseproof Paper, 10x15 ins. 
 
 per doz. 
 
 1/- 
 
 (a) CARBRO solutions (Concentrated). No. 1 6 oz. bottle 2/3 
 
 ,, ,, ,, No. 2 5 oz. bottle 2/3 
 
 (D) BROMIDE PAPERS (SPECIAL NON SUPER COATED FOR CARBRO 
 (ILFORDS). 
 
 4|x 6^ ins. 1/9 per packet of 10 
 
 6ix 8i 2/9 
 
 8 xlO 3/9 
 
 5/6 
 .. 8/3 
 
 84»s-. X— 25'^tt7 10/9 per roll 
 
 (c) PUBLICATIONS— 
 
 “ Autotype Colour Printing Proc 
 “ The Carbro Process ... ... 7d. (post free 9d.) 
 
 heets. Plus Purchase Tax +i 
 
 Plus Purchase Tax 
 Plus Purchase Tax 
 Plus Purchase Tax 
 Plus Purchase Tax 
 Plus Purchase Tax 
 
 
 4/- (post free 4/3) 
 
 Printed in Gt. Britain by Perry & Routleff L,td., Ealing and Uxbridge — 307