Re: Bichromated Wash Drawing from 1 9 5 4

To: The List <alt-photo-process-l@usask.ca>
Subject: Re: Bichromated Wash Drawing from 1 9 5 4
From: Judy Seigel <jseigel@panix.com>
Date: Sat, 05 Jan 2008 23:30:37 -0500 (EST)
Comments: "alt-photo-process mailing list"
In-reply-to: <001501c84fab$a0ce3690$ffe80252@win8d24f736839>
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NOTE:

''This interesting variation of the gum-bichromate process is

particularly suitable for obtaining large pictures, by printing under large negatives.

Apparently the "large picture" in 1954 was 9x5" !

development may be localized as required by bringing the vaporizer nearer. Development takes about 20 minutes for a surface 9'' X 5'' which has been correctly exposed. ''

Thanks, John, for the formula -- apparently not in my edition of 1944, but it inspires me to check two "Pigment Processes"
chapters... For instance, the index mentions ""commercial gum bichromate papers."

J.

References:
- Bichromated Wash Drawing from 1 9 5 4
  - From: John Grocott <john.grocott403@ntlworld.com>