A nice February 27, 1964 cancel from Chestnut Hills, Massachusetts on this cover that was sent by Airmail, Special Delivery Express via Copenhagen, Denmark to Antwerp, Belgium -- being backstamped in both locations including a scarce February 29 backstamp in Antwerp.  Great, mixed franking and an Express Special Delivery sticker on this interesting and attractive historic item.  Fine condition; sharper than the image may appear.  If the image does not readily appear, please try hitting your computer's reload or refresh button while viewing the item. Successful bidder to pay $1.50 shipping in the US ($2.50 elsewhere); insurance extra if desired. PayPal accepted for payment. Questions -- please ask~