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LUDWIK SILBERSTEIN
Handwritten letter by Einstein featuring his E = mc2 equation sells for $1.2 mn at auctionThere are only three other known examples of Einstein writing the world-changing equation in his own hand.
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Handwritten letter by Einstein featuring his E = mc2 equation sells for $1.2 mn at auctionCopyright © 2026 Bennett, Coleman & Co. Ltd. All rights reserved. For reprint rights:
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