1. Early photography
It is likely that lesbians began taking photographs almost as soon as the medium was invented in 1839. Concealed by time and overt hostility the vast majority of these lesbian made images remain hidden in private photo albums and never reach public display.
The earliest lesbian-produced work currently known is by Emma Jane Gay (1830-1919) who took photos of Alice Fletcher whom she was in love with. The feeling was however not mutual. She later moved to England and had her love returned by a female doctor.