Wikimedi'Òc

Thomas Alva Edison Signature.svg - McSush

Thomas Edison signature.jpg - Vizu

Appletons' Edison Thomas Alva signature.png - Bob Burkhardt

Famous Living Americans - Thomas A. Edison Signature.jpg - Sp1nd01

Cement block bearing Thomas Edison's signature and Luther Burbank's spade, which Edison had embedded in cement. (39154b775bc245a68dede3a190374f67).jpg - BMacZeroBot

Cement block bearing Thomas Edison's signature and Luther Burbank's spade, which Edison had embedded in cement. (55eed8820d644633886c8701b41ac442).jpg - BMacZeroBot