Official Business and Large Naval Covers, 1924-39, diverse group of over 200 covers, about a third of which are 1930 or earlier, the vast majority being official imprint covers from a wide range of ship types, some registered uses, foreign port locations, Marine detachments, flag cancels, etc., particularly unusual 1924 imprint cover from the USS Mississippi's Newspaper; condition overall F-VF considering the usual abuse large envelopes take in the mail. Estimate  $150 - 200. $0 (Image)