Regency-Superior is an Official Auctioneer for the APS StampShow being held August 21-24th. We’re excited to offer three major holdings – the balance of the massive Bob Weisz stock, as well as the collections of St. Louis collectors Leo Groenweghe and David Straight. Also offering one of the world’s rarest and most valuable aviation errors: the 1930 Romanian Error Sheet (Sanabria #8d). This is a well-rounded and diverse auction with 3,283 lots, spanning virtually all aspects of philately & postal history.