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Albert Einstein -Authentic Hand Signed & Dated Formula -Autographed -Framed -COA 1980.06 USD ~ 1759.58 EUR Albert Einstein -Authentic Hand Signed & Dated Formula -Autographed -Framed -COA Bob Lazar Autographed Signed 8x10 Photo Area 51 UFO S-4 Alien Beckett BAS 124.99 USD ~ 111.07 EUR Bob Lazar Autographed Signed 8x10 Photo Area 51 UFO S-4 Alien Beckett BAS Elon Musk Signed Autographed 8x10 Photo Tesla Space-X Founder DOGE w/COA 299.99 USD ~ 266.59 EUR Elon Musk Signed Autographed 8x10 Photo Tesla Space-X Founder DOGE w/COA Thomas Edison | JSA Certified Signature | Signed Un Cut 3x5 Autograph Book Page 1399.07 USD ~ 1243.29 EUR Thomas Edison | JSA Certified Signature | Signed Un Cut 3x5 Autograph Book Page ANAESTHESIA  / “Johns Hopkins” PHYSICIAN "William Henry Welch" SIGNED Pamphlet 1575.00 USD ~ 1399.63 EUR ANAESTHESIA / “Johns Hopkins” PHYSICIAN "William Henry Welch" SIGNED Pamphlet Jensen Huang Signed Autographed 8x10 Photo Nvidia Founder CEO Donald Trump 999.99 USD ~ 888.64 EUR Jensen Huang Signed Autographed 8x10 Photo Nvidia Founder CEO Donald Trump ORVILLE REDENBACHER autograph FOOD SCIENTIST Popcorn Signed Business Card AUTO 299.99 USD ~ 266.59 EUR ORVILLE REDENBACHER autograph FOOD SCIENTIST Popcorn Signed Business Card AUTO Jensen Huang SIGNED AUTOGRAPHED 11x14 Canvas Nvidia Founder CEO AI Trump 1999.99 USD ~ 1777.29 EUR Jensen Huang SIGNED AUTOGRAPHED 11x14 Canvas Nvidia Founder CEO AI Trump Sie sparen 300 USD Jensen Huang Signed 8x10 Photo w JSA COA #CN78298 Nvidia Founder CEO Fortune Mag 699.99 USD ~ 622.05 EUR Jensen Huang Signed 8x10 Photo w JSA COA #CN78298 Nvidia Founder CEO Fortune Mag Sie sparen 9.25 USD Bill Gates Signed Autographed PSA/DNA Slab Slabbed Cut Autograph 175.74 USD ~ 156.17 EUR Bill Gates Signed Autographed PSA/DNA Slab Slabbed Cut Autograph Steve "WOZ" Wozniak APPLE CO-FOUNDER HAND SIGNED 8x10 Photo with JSA COA 69.75 USD ~ 61.98 EUR Steve "WOZ" Wozniak APPLE CO-FOUNDER HAND SIGNED 8x10 Photo with JSA COA NOLAN BUSHNELL FOUNDER SIGNED AUTOGRAPHED ATARI FLASHBACK SYSTEM CONSOLE JSA 399.99 USD ~ 355.45 EUR NOLAN BUSHNELL FOUNDER SIGNED AUTOGRAPHED ATARI FLASHBACK SYSTEM CONSOLE JSA Neil DeGrasse Tyson Signed 2018 Allen & Ginter Moon Autographed PSA Gold Auto 99.00 USD ~ 87.98 EUR Neil DeGrasse Tyson Signed 2018 Allen & Ginter Moon Autographed PSA Gold Auto Tesla Framed Display with Elon Musk Printed Signature 70.00 USD ~ 62.21 EUR Tesla Framed Display with Elon Musk Printed Signature Steve Wozniak Woz Signed 8x10 Photo Apple II Plus Computer PSA/DNA COA Autograph 119.00 USD ~ 105.75 EUR Steve Wozniak Woz Signed 8x10 Photo Apple II Plus Computer PSA/DNA COA Autograph B.F. Skinner (Psychologist) ~ Signed Autographed Harvard Uni Letter BF ~ PSA DNA 850.00 USD ~ 755.35 EUR B.F. Skinner (Psychologist) ~ Signed Autographed Harvard Uni Letter BF ~ PSA DNA Neil deGrasse Tyson SIGNED Index Card Autographed PSA/DNA Astrophysicist Auto 119.99 USD ~ 106.63 EUR Neil deGrasse Tyson SIGNED Index Card Autographed PSA/DNA Astrophysicist Auto Vint Cerf INVENTOR OF THE INTERNET SIGNED ORIGINAL 1/1 SKETCH BAS Beckett COA 129.99 USD ~ 115.52 EUR Vint Cerf INVENTOR OF THE INTERNET SIGNED ORIGINAL 1/1 SKETCH BAS Beckett COA Bob Lazar signed autographed PSA DNA slabbed Allen&Ginter Area 51 Flying Saucers 249.95 USD ~ 222.12 EUR Bob Lazar signed autographed PSA DNA slabbed Allen&Ginter Area 51 Flying Saucers Neil DeGrasse Tyson 8x10 Photo Signed Autographed JSA COA 450.00 USD ~ 399.89 EUR Neil DeGrasse Tyson 8x10 Photo Signed Autographed JSA COA Sie sparen 15 USD NEIL DEGRASSE TYSON HAND SIGNED AUTOGRAPHED 8x10 PHOTO ASTROPHYSICIST BAS COA 84.99 USD ~ 75.53 EUR NEIL DEGRASSE TYSON HAND SIGNED AUTOGRAPHED 8x10 PHOTO ASTROPHYSICIST BAS COA Amelia Earhart Signed Book - "The Fun Of It" - Aviation Autograph 2500.00 USD ~ 2221.63 EUR Amelia Earhart Signed Book - "The Fun Of It" - Aviation Autograph Steve Jobs Signed 1976 Apple Check PSA DNA Graded 10 GEM MINT 99995.00 USD ~ 88860.75 EUR Steve Jobs Signed 1976 Apple Check PSA DNA Graded 10 GEM MINT Sir DAVID ATTENBOROUGH Signed AUTO Planet Earth Art Card PSA DNA Certified 89.99 USD ~ 79.97 EUR Sir DAVID ATTENBOROUGH Signed AUTO Planet Earth Art Card PSA DNA Certified Original Albert Szent Gyorgyi Inscribed/Signed Photo -Nobel Prize Scientist 374.99 USD ~ 333.24 EUR Original Albert Szent Gyorgyi Inscribed/Signed Photo -Nobel Prize Scientist Ronald G. Wayne APPLE Signed Autographed Co-Founder Auto Steve Jobs BAS Card 199.99 USD ~ 177.72 EUR Ronald G. Wayne APPLE Signed Autographed Co-Founder Auto Steve Jobs BAS Card Neil deGrasse Tyson SIGNED "Captain Neil" Letter RARE Autographed PSA/DNA Auto 149.98 USD ~ 133.28 EUR Neil deGrasse Tyson SIGNED "Captain Neil" Letter RARE Autographed PSA/DNA Auto Sie sparen 300 USD Jensen Huang Signed 8x10 Photo w/ JSA COA #CN78299 Nvidia Founder CEO Forbes Mag 699.99 USD ~ 622.05 EUR Jensen Huang Signed 8x10 Photo w/ JSA COA #CN78299 Nvidia Founder CEO Forbes Mag RARE The Double Helix Book Signed Autographed James Watson 1st Ed. 5th Prnt. 1500.00 USD ~ 1332.98 EUR RARE The Double Helix Book Signed Autographed James Watson 1st Ed. 5th Prnt. John Forbes Nash Jr Nobel Prize Economics Game Theory Signed Autograph 135.00 USD ~ 119.97 EUR John Forbes Nash Jr Nobel Prize Economics Game Theory Signed Autograph B.F. Skinner (Psychologist) ~ Signed Autographed Harvard Uni Letter BF ~ PSA DNA 795.00 USD ~ 706.48 EUR B.F. Skinner (Psychologist) ~ Signed Autographed Harvard Uni Letter BF ~ PSA DNA Vint Cerf & Tim Berners-Lee Autographs PSA DNA Internet & World Wide Web Creator 749.00 USD ~ 665.6 EUR Vint Cerf & Tim Berners-Lee Autographs PSA DNA Internet & World Wide Web Creator Sie sparen 22.2 USD Steve Woz Wozniak SIGNED 3"x5" Photo Apple founder Encapsulated PSA AUTOGRAPHED 162.80 USD ~ 144.67 EUR Steve Woz Wozniak SIGNED 3"x5" Photo Apple founder Encapsulated PSA AUTOGRAPHED Sie sparen 225 USD Tim Cook Signed 8x10 Photo w/ JSA LOA #BB55909 Apple CEO Steve Jobs 524.99 USD ~ 466.53 EUR Tim Cook Signed 8x10 Photo w/ JSA LOA #BB55909 Apple CEO Steve Jobs Bob Lazar Signed Autographed 3x5 Index Card Area 51 Flying Saucers PSA Slabbed 149.99 USD ~ 133.29 EUR Bob Lazar Signed Autographed 3x5 Index Card Area 51 Flying Saucers PSA Slabbed Francis Crick / James Watson (DNA Nobel Prize Medicne 1962 ) Dual Hand Signed 129.00 USD ~ 114.64 EUR Francis Crick / James Watson (DNA Nobel Prize Medicne 1962 ) Dual Hand Signed Carolyn Porco- Signed Photograph 125.00 USD ~ 111.08 EUR Carolyn Porco- Signed Photograph Bill Gates Signed 5x7 Photo Print PSA/DNA Encapsulated Microsoft Warren Buffett 349.99 USD ~ 311.02 EUR Bill Gates Signed 5x7 Photo Print PSA/DNA Encapsulated Microsoft Warren Buffett EDWARD TELLER Signed Photo Autograph Father of Hydrogen Bomb Lawrence Lab 1958 199.99 USD ~ 177.72 EUR EDWARD TELLER Signed Photo Autograph Father of Hydrogen Bomb Lawrence Lab 1958 B.F. Skinner (Psychologist) ~ Signed Beyond Freedom & Dignity Book BF ~ JSA COA 850.00 USD ~ 755.35 EUR B.F. Skinner (Psychologist) ~ Signed Beyond Freedom & Dignity Book BF ~ JSA COA Hiram Percy Maxim/Pope Manufacturing - Autographs W/COA 1594.80 USD ~ 1417.22 EUR Hiram Percy Maxim/Pope Manufacturing - Autographs W/COA Vintage 1975 Caltech Albert Einstein 1933 Bicycle Photo Framed 100.00 USD ~ 88.87 EUR Vintage 1975 Caltech Albert Einstein 1933 Bicycle Photo Framed