Signature Together With Photo
Date Published: 1979
Description: Dark blue ball-point pen signature on a 3 x 5-inch card, no place, March 10, 1979. Hinged to an 11 x 8-inch page containing an image of the scientist and a small bio, housed in protective plastic. Fine condition.
Comments: World acclaimed Seismologist who devised the scale of earthquake magnitude that has been the standard for measuring earth tremors since 1935, commonly referred to as the "Richter Scale."Signed: Y
Book ID: 229396