John Sloan's "X-rays".
Schatzki
S C
SC
Department of Radiology, Mount Auburn Hospital, Cambridge, MA 02238.
D004741:Engraving and Engravings / Q000266:history*; D049672:History, 19th Century; D049673:History, 20th Century; D006801:Humans; D008512:Medicine in the Arts; D011859:Radiography / Q000266:history*