The J. Paul Getty Museum
O. G. Mason
License, verbatimCC0
The J. Paul Getty Museum: image dedicated to the public domain under Creative Commons Zero (CC0), stated on the media record itself ('Rights for Media'), with download clearance.
O. G. Mason. Condylomata lata and Condylomata acuminata (non-syphilitic), 1881. The J. Paul Getty Museum.