Z401

Z401 / Scott 1866

Great Americans

Robert Millikan - Experimental Physicist

Collins Cover Announcement

ROBERT MILLIKAN

This $.37 issue is part of the Great American Series and shows Millikan doing research in a laboratory. It is a nicely painted cachet, and the design makes it a very attractive cover. A single is hand canceled at Pasadena, California and an additional single is hand canceled at San Marino, Millikan's place of death. Item #Z401 - $6.00