This Albert Einstein boldly signed letter is addressed to Professor Harlow Shapley at the Harvard Observatory on The Institute for Advanced Study letterhead. In this February 1943 letter, Einstein expresses his willingness to join the National Committee for the commemoration of the 400th anniversary of Copernicus’ death, honoring the revolutionary astronomer. Encapsulated with a Mint 9 auto grade, it comes with a PSA letter of authenticity, making it an extraordinary addition to any collection of scientific memorabilia.

Piece size: 8” x 11”

Signature: Black ink pen

Authentication: PSA/DNA Letter of Authenticity