$35k copy of the Principia sold on Biblio On Biblio $35k copy of the Principia sold on Biblio 8 years ago4 Comments
Einstein’s letter of support for Marie Curie Auctions & Rare Finds Einstein’s letter of support for Marie Curie 9 years ago1 Comment
Copernicus Book Thought Destroyed in Fire is Found Again Rare Finds Copernicus Book Thought Destroyed in Fire is Found Again 10 years agoAdd Comment