Our Customers

We search the world to find important historical documents and bring them to our historically passionate clientele.

Our Discoveries

Quality defines value. We have decades of experience measuring the caliber of an item’s content or importance, and that assessment is crucial.

Who We Are

Meet the men and women of The Raab Collection.

Our History

What began as a hobby has become a company with customers worldwide, private collections, as well as major institutions.

Guarantee

Every item purchased from the Raab Collection, LLC is guaranteed to be authentic, without time limit, to the original purchaser.

Albert Einstein’s Spacetime Letter

In 1945, Albert Einstein wrote a group of soldiers stationed in the Pacific Theater of World War II, explaining that space is a four-dimensional continuum and that reconciled that with his newer scientific theories. The sale of that unpublished letter was covered in media outlets worldwide. It sold to a private collector. The full description can be seen here.