He gave them the finger(s): A "Martyr to X-ray"

The March 25, 1925 issue of the New York Evening Post features this article about Dr. Frederick H. Baetjer, who gave his finger — actually eight of his fingers — to science:

(Thanks to investigator Earle Spamer for bringing this to our attention.)

BONUS: A few years later someone requested his autograph, prompting this letter from the good, nearly fingerless doctor: