Gerhard Ertl Physicist Nobel Prize Signed 4x5 Photo Card JSA Authenticated
Signed Gerhard Ertl 4x5 photo card in blue pen. This autograph has been authenticated by James Spence Authentication (JSA) with sticker affixed to item and matching card.
Signed Gerhard Ertl 4x5 photo card in blue pen. This autograph has been authenticated by James Spence Authentication (JSA) with sticker affixed to item and matching card.