The practical printer : a complete manual of photographic printing (1874)
Hearn, Charles W · Philadelphia : Benerman & Wilson · leaf 53
flannel glued to it, napped side out, on that side of course which is to be placed nearest to the negative. This gives a soft cushion to the backboard, which is a desirable thing. As a general thing, loose pads are placed in the board on to the sensitive paper, but there is no absolute neces¬ sity… … one piece one-third larger than the other. The separa pieces are now joined together by means of a couple of small hinges.
Photography -- Printing processes · Photographs on porcelain
Internet Archive · Smithsonian Libraries · Public domain (published before 1931). Free to use for anything.
