# Albert Einstein's 100-year-old handwritten letter filled with equations sells for $71,811

- Source: Times of India
- Published: 2026-10-23T13:00:00+00:00
- Category: World
- Original: https://timesofindia.indiatimes.com/world/us/around-1929-albert-einstein-filled-a-handwritten-letter-to-mathematician-chaim-herman-muntz-with-equations-nearly-a-century-later-the-one-page-document-and-its-original-envelope-sold-for-71811/articleshow/135143113.cms
- Canonical: https://groundlevelnews.com/story/albert-einstein-s-100-year-old-handwritten-letter-filled-with-equation-56a93d/

A handwritten letter by Albert Einstein, believed to date back to around 1929, has sold for $71,811 at RR Auction. Addressed to mathematician Chaim Herman Muntz, the one-page document contains detailed equations exploring Hamiltonian mechanics, covariance and invariance. Written in German, the letter was sold with its original envelope, postmarked in Potsdam, offering a glimpse into Einstein's mat

_Ground Level News shows a short summary only; the full article and all rights belong to Times of India._