{"product_id":"clyde-tombaugh-signed-index-card-with-pluto-discovery-inscription","title":"Clyde Tombaugh Signed Index Card with Pluto Discovery Inscription","description":"\u003cp\u003eThis is an exceptional signed index card from Clyde W. Tombaugh, the American astronomer best known for discovering Pluto in 1930. The autograph has been fully authenticated by Beckett Authentication Services and includes an inscription detailing his historic discovery.\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eAbout the signer: Clyde Tombaugh (1906–1997) was the American astronomer who discovered Pluto on February 18, 1930, while working at the Lowell Observatory. His discovery reshaped our understanding of the solar system and remains one of the most significant astronomical findings of the 20th century.\u003c\/p\u003e\u003cbr\u003e\u003cul\u003e\n\u003cli\u003eAuthentic autograph of Clyde W. Tombaugh\u003c\/li\u003e\n\u003cli\u003eBeautifully inscribed referencing the discovery of Pluto\u003c\/li\u003e\n\u003cli\u003eSigned on a clean index card, perfect for display or framing\u003c\/li\u003e\n\u003cli\u003eAuthenticated by Beckett Authentication Services\u003c\/li\u003e\n\u003cli\u003eFrom the prestigious Steve Grad Autograph Collection – Steve Grad has been a regular cast member on the History Channel’s Pawn Stars since 2013, the lead authenticator at BECKETT Authentication, and former Principal Authenticator at PSA\/DNA (2002–2016)\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\u003cp\u003eA rare opportunity to own a historically important autograph from the discoverer of Pluto, fully authenticated and ready to add to your collection.\u003c\/p\u003e\u003cdiv class=\"gc-bio\"\u003e\n    Steve Grad has been a regular cast member on the History Channel's \u003ci\u003ePawn Stars\u003c\/i\u003e since 2013. He is the Lead Authenticator at Beckett Authentication Services and formerly served as Principal Authenticator at PSA\/DNA.\n  \u003c\/div\u003e","brand":"GradCollection","offers":[{"title":"Default Title","offer_id":50453784199411,"sku":"20250","price":60.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0806\/6334\/7443\/files\/57_e50db6aa-920d-41ba-85d0-5ed9ca97eb16.jpg?v=1787112949","url":"https:\/\/gradcollection-2.myshopify.com\/products\/clyde-tombaugh-signed-index-card-with-pluto-discovery-inscription","provider":"GradCollection","version":"1.0","type":"link"}