Coolidge, William David
Signed album page, 5,5 x 4 inch, signed and dated in black ink "With kindest regards from - W.D. Coolidge - Mar. 28, 1964", mounted for fine display with a photograph, shows William David Coolidge at a X-ray machine (altogether 8,25 x 11,75 inch), in very fine condition.
|Profession||American physicist, who made major contributions to X-ray machines|
|Year of birth||1873|
|year of death||1975|
|Size in inch (1 inch = 2.5 cm)||5,5 x 4 (altogether 8,25 x 11,75 inch)|
|Type of Autograph||cards / album pages|