A manual of photo-engraving : containing practical instructions for producing photo-engraved plates in relief-line and half-tone with chapters on dry plate development and half-tone color work (1896)
Jenkins, H. (Harry), 1868- · Chicago : Inland Printer · leaf 29
PRINTING FRAME. 14 MANUAL OF PHOTOENGRAVING. … should be purchased. There should also be a largefunnel for filtering- the baths and several smallerones for collodion, printingsolutions, etc. An important article is theactino-hydrometer for testingthe strength of the silverbath. Various sizes of plateglass, as required, should beprovided for…
Photoengraving · Color photography
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