United States Cover Assortment, of approximately 600 covers in three stockboxes; wide mix of material including early stampless, 1851 & 1857 10¢ usages to S.F., airmail with first flights including a run of 1936-37 Trans-Pacific route covers, express covers, few C.S.A. franked covers, exposition, FDC's, Navy ship covers and many other interesting items; condition mixed with useful material throughout. Estimate  $400 - 600. $0