Cliché-Verre: Miniatures on Glass:

Cliché-verre is a technique of etching and painting directly on photographic negatives. The term means glass negative" in French and is as old as photography itself, dating to the 1840s and earlier. The first successful photographic process involved coating glass plates with light-sensitive chemicals from which reversed (positive) prints could be made. Artists experimented with drawing, etching, and combining images directly on the glass, resulting in fanciful black-and-white prints. But fe...