Italian physicist and inventor who devoted his life to experiments in wireless communication, and was awarded the Nobel prize in 1909. Vintage 10.5 x 15 photo (image size measures 7 x 9.5) of Marconi in a military uniform, signed and inscribed in the lower border in fountain pen “To William J. Flynn, Yours very truly, G. Marconi, Washington, D. C. June 1917.” Framed to an overall size of 11.75 x 16, which is in turn framed to an overall size of 17 x 21.5. In fine condition, with cracks to top corners, not affecting image. COA John Reznikoff/PSA/DNA and R&R COA.