Mathematician and electrical engineer (1865-1923) who made major advances in the development of alternating current. Vintage glossy 8 x 10 photo of Steinmetz with fragments of a tree branch damaged by a lightning generator, signed in the lower border in fountain pen. Affixed to a same-size mount and in very good to fine condition, with two small dents to the right edge, and creasing to the top coming down over Steinmetz's left shoulder.
This item is Pre-Certified by PSA/DNA
Buy a third-party letter of authenticity for
(inquire for price)
*This item has been pre-certified by a trusted third-party authentication service, and by placing a bid on this item, you agree to accept the opinion of this authentication service. If you wish to have an opinion rendered by a different authenticator of your choosing, you must do so prior to your placing of any bid. RR Auction is not responsible for differing opinions submitted 30 days after the date of the sale.
