Original used pre / early WWII 2nd Regiment / Battalion unit collar brass.  Insignia is screwback with no hallmarks on the obverse.  Collar Brass measures 1.0 inches and is in used condition with light wear and moderate toning being overall very good shape (please see photos for the best description).  Nice insignia for a shadow box, to restore a uniform or use by a re-enactor.  Seller does combine shipping on items.  Please see my other auctions for more WWII patches, and other military items and e-mail me any questions.