Cecil Beaton (1904-1980) self-portrait in All the Vogue, Cambridge Footlights, 1925 | src Cecil Beaton Studio Archive at Sotheby’sCecil Beaton self-portrait, Cambridge Footlights, 1925 | src Cecil Beaton Studio Archive at Sotheby’s via anOther magazine
[Frances Benjamin Johnston, full-length self-portrait dressed as a man with false moustache, posed with bicycle, facing left]; 1890-1900 src Library of Congress[Frances Benjamin Johnston (right), full-length self-portrait dressed as a man with false moustache, posed with two unidentified women, one of whom is also dressed as a man]; 1880-1900 | src Library of Congress
According to Shorpy ─in this website the photograph is titled “Reverso”─ Frances Benjamin Johnston is posing here with two similarly cross-dressing friends. The “lady” is a gent identified in a few other FBJ photos as the illustrator Mills Thompson.