Bird's-eye view of the Grand Hotel, Mackinac Island, Michigan. Printed on front: "Aeroplane view, Grand Hotel, Mackinac Island, Mich." Printed on back: "Made by Curt Teich & Co., Inc., Chicago, U.S.A. CT Co., Chicago." Typed on back: "Here you will enjoy three glorious days at the Michigan Gas Convention, June 25-26-27. In all the world, no place like this! It is not too early to make your reservations. Write directly to the Hotel. Our big announcement of business and entertainment coming soon. Watch for it!" Card is postmarked May 14, 1925.
