Quality Scottish Photochrom - Medium Metal Wall Sign - 30 cms x 20 cmsPart of a unique range of reproduction metal signs manufactured by one of the UK's leading specialist metal sign providers.The original Photochrom prints are colorized images which are produced from black-and-white photographic negatives via the direct photographic transfer of the negative onto lithographic printing plates. The process is considered a photographic variant of chromolithography, a broader term referring to color lithography in general. The photochrom process was most popular in the 1890s when true color photography was first being developed but was still commercially impractical.
Trustpilot
3 weeks ago
2 months ago
