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Item #  Item          Showing items 1 to 20 of 48 items found. MB Now At Next Bid
4001 Albert Einstein Typed Letter Signed with Handwritten Equations on Spacetime (December 17, 1933) — TLS $1000 $1331 $1465
4002 Albert Einstein Autograph Letter Signed with Gravitational Field Equations (December 24, 1933) — ALS $5000 $6050 $6655
4003 Albert Einstein Autograph Letter Signed with E=mc2 (October 26, 1946) — ALS $25000 $25000 $27500
4004 Ludwik Silberstein Signed 'On Einstein's Gravitational Field Equations' Offprint Booklet — Offprint Booklet $200 $0 $200
4005 Albert Einstein Typed Letter Signed on Hitler and Planck (September 20, 1934) — TLS $1000 $1100 $1210
4006 Max Planck Autograph Letter Signed on Research Topics (June 12, 1896) — ALS $200 $200 $220
4007 Max Planck Autograph Letter Signed on a Differential Equation (October 5, 1897) — ALS $200 $267 $294
4008 Max Planck Autograph Letter Signed on a Scientific Paper (July 27, 1901) — ALS $200 $220 $242
4009 Max Planck Autograph Letter Signed on Objections to the Electron Theory (July 20, 1906) — ALS $200 $242 $267
4010 Max Planck Autograph Letter Signed on Different Electron Theories (October 22, 1906) — ALS $200 $267 $294
4011 Max Planck Autograph Letter Signed on Max Abraham's Theory of Gravitation (February 14, 1912) — ALS $200 $220 $242
4012 Max Planck Autograph Letter Signed on World War I and Family (August 4, 1919) — ALS $200 $200 $220
4013 Max Planck Autograph Letter Signed on Einstein's Theory of Gravitation (October 19, 1919) — ALS $200 $294 $324
4014 Max Planck Autograph Letter Signed on Nobel Prize and Platinum Meter Standard (November 30, 1919) — ALS $200 $0 $200
4015 Max Planck Autograph Letter Signed in Defense of Einstein's Theory of Relativity (January 25, 1920) — ALS $200 $800 $880
4016 Max Planck Autograph Letter Signed on Ether and Relativity (March 21, 1920) — ALS $200 $242 $267
4017 Max Planck Autograph Letter Signed on Gravitational Redshift and Ether Theory (April 17, 1920) — ALS $200 $200 $220
4018 Ludwik Silberstein's 'Origin and Development of the Quantum Theory by Max Planck' Offprint Booklet — Offprint Booklet $200 $0 $200
4019 J. J. Thomson Autograph Letter Signed on Silberstein's Lectures (October 3, 1911) — ALS $300 $363 $400
4020 William Henry Bragg Typed Letter Signed on a High Speed Electron Problem (January 25, 1919) — TLS $200 $0 $200
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