This is a St. Kitts Official Airmail cover.  It was sent from St. Kitts to Connecticut, USA on 10/7/1981.

What's notable with this one is that it has SC 011, the 15 Cents, and SC 019, the $1.00 Official stamps used for postage!  This is a lovely cover!

You don't often see these available, so get them while you can!  If you like this item, come check out our store!  We offer a wide variety of covers and stamps for all your philatelic needs!