US First Flight Cover Pan Am Map Honolulu to Pontiac MI via SF 1937 US Scott c21.

This stamp cover commemorates the historic first flight from Honolulu to Pontiac, Michigan via San Francisco in 1937. The cover features a Pan Am map and a US Scott c21 stamp with a denomination of 20 cents. It has been cancelled with a handstamp and is of ungraded quality. The cover is a great addition to any aviation or stamp collection and is a unique piece of history from the United States.