We authenticate autographed material in all fields for collectors, dealers, government agencies, public and private institutions, and auction houses. A signed Certificate of Authenticity will be issued for each item submitted.

We maintain one of the largest autograph reference libraries in the world. Many scholars, librarians and auction houses utilize this library for their research. Autograph reference books dating from the 1830s and every conceivable book published on the subject are available to our researchers, not to mention the largest library of genuine exemplars extant.

Our policy is to offer a standard price for any & all authentications. When numerous items are involved, a group discount will be offered. Return of items is expeditious. We do not want to hold your precious material longer than necessary.