This lot is closed for bidding. Bidding ended on 6/30/2023
Astronomer Clyde Tombaugh signed photo of Pluto, the planet he discovered in 1930. Tombaugh writes along the top margin in black felt-tip, ''Clyde W. Tombaugh / Discovered 9th planet, Pluto, on 18 Feb 1930''. Half-matte photo measures 10'' x 8''. Near fine condition.