Check out my other online auctions of rare and vintage stamps. My e bay store, Aztec Collectables, has a fine and growing selection of unique covers, stamps and postcards. The item "1919 Constantinople British Post Office Missionary Cover to Boston Ma USA" is in sale since Tuesday, May 21, 2019.This item is in the category "Stamps\Great Britain\Covers". The seller is "aztec-collectables" and is located in Lake Worth, Florida. This item can be shipped worldwide.