| Unidentified photographer X-ray photos of a salamander and crawfish 1890s X-ray 8.5 x 15.5 cm Bassenge Photography Auctions Photography, 6 June 2018, Lot: 4103 LL/82531 Mounted to board with printed text Professor Dotterweich's Röntgen'sche Sterescop-Aufnahme on the mount.
| |