Confederate States of America, Post Office Department.
Official imprint at top right of blue oversize cover addressed to Howell Cobb as "M.C." (Member of Congress) at Montgomery Ala., neat "Montgomery Ala. May 17, 1861" circular datestamp, some edge wear and edge tears, Fine, this is the first known Confederate use of a official envelope,
described in December 1963 issue of Confederate Philatelist
and believed to have been written in the hand of Confederate Postmaster General John H. Reagan
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