All World Collections, Indian States, Sperati - Day 5

German States, Oldenburg – 1861, 2gr one negative master cliché dated July 1941, and a thick glass support cliché with an exposure in vermilion, also two fine clichés on celluloid, in brown (dateed 1941) and vermilion (mirror image), the colour that Sperati often preferred for optimum contrast, one cliché with Sperati`s handwritten production comments; a fine group that includes the key master cliché on the basis of which the finished reproduction was produced.