Power, Eustace Bertram Le Poer, 1872-
The general issues of United States stamps, their shades and varieties; to which is affixed a history of the private perforating machines and their products, by Eustace B. Power. - 1st ed. - New York, S. Gibbons, incorporated; [etc., etc.] 1909.
Postage Stamps--USA
Perforating Machines
The general issues of United States stamps, their shades and varieties; to which is affixed a history of the private perforating machines and their products, by Eustace B. Power. - 1st ed. - New York, S. Gibbons, incorporated; [etc., etc.] 1909.
Postage Stamps--USA
Perforating Machines