Henry Robert Harmer or William Thornton Fisher (embossed stamp) 1857-1861 (publication) 8 Cross cutting of garde Clematis
Albumen print, photomicrograph, circular 9 cm (diameter)
Internet - Original source ill-defined [n.a. Olley?], 1857-1861, The wonders of the microscope photographically revealed, by means of Olley's patent micro-photographic reflecting process., (London: W. Kent and Co.), (opp. p.9)
