Practical guide to photographic & photo-mechanical printing (1892)
Burton, W. K. (William Kinnimond), author · London W. : Marion and Co., 22 and 23, Soho Square · leaf 55
k is made in two halves, hinged together. It is pressed by two springs against the film ; but either of these springs can be released, allowing one-half of the frame to be hinged back, so that the corre- sponding half of the print may be examined as it progresses. In the frame just described there… … illustrated here, in which there is a plate-glass front, against which the negative lies. The back is somewhat different in form from that of the cheaper frames ; but the object to be effected is the same in both cases. It will readily be understood that, with a plate-glass frame, it is possible to…
