Naval Cover Balance, 1930-60's, approximately 600 covers and cards, many in slips, strength on 1930's usages with and array of ships and cachets including unused Crosby cachet covers, Admission Day, first day commissioned & last day decommissioned, Flag Day, Fleet Week, etc., ships including submarine, destroyers, also a selection of mostly unused post cards showing various ships, etc.; interesting group, worth review. Estimate  $300 - 400. $0