Jack Steinberger USA German Physicist Nobel Prize Hand Signed Photo & Env

CHAU2411  This is a hand signed photo by Jack Steinberger autographed on the reverse where his signature rests perfectly in blue fountain pen in mint condition (please see both images).  It comes with another original envelope sent from Jack Steinberger making this a double autograph opportunity (please see all images).

Jack Steinberger was a German-born American physicist noted for his work with neutrinos, the subatomic particles considered to be elementary constituents of matter. He was a recipient of the 1988 Nobel Prize in Physics, along with Leon M. Lederman and Melvin Schwartz, for the discovery of the muon neutrino.