American Airlines added Elkins to Air Mail Route 25 on March 4, 1935 between Washington, DC and Charleston, West Virginia. An official cachet was provided at Elkins.

This cover was carried on the inaugural Air Mail Route 25 flight from Elkins, West Virginia to Chicago, Illinois (where it was backstamped) and is listed in the Contract Air Mail Flights (CAM) section of The American Air Mail Catalogue as 24W8.