*Here you have a WONDERFUL VINTAGE piece of HISTORICAL MEMORABILIA. Please...SEE THE SCAN! This is the 1954 envelope with cachet and cancelled stamp for the First Day of Issue of the 150TH ANNIVERSARY OF LEWIS AND CLARK EXPEDITION 1804-5-6 U.S. Postage stamp. The cachet is an image of WILLIAM CLARK AND MERIWETHER LEWIS and a CANOE FROM THE CORPS OF DISCOVERY. The caption reads “150TH ANNIVERSARY LEWIS AND CLARK EXPEDITION 1804-5-6”. The stamp was cancelled at SIOUX CITY, IOWA on JULY 28, 1954! The envelope measures 6.5 inches X 3.5 inches and THIS IS IN SUPERB CONDITION! There is some browning on the back from the aging of the envelope's sealer. Take it home with you! GOOD LUCK! Please Check Out My Ebay Store for more great memorabilia!!! I am happy to send this to any country. 1st class air postage will be charged… More excellent packaging and free shipping here in the United States! THANKS!