Commemorative first-flight air-mail cover from Flint, Mich. to Bay City/Cleveland with boxed cachet dated April 1, 1929. Circular Flint, Mich. postmark and 5-cent U.S. airmail stamp are cancelled. Typed address to Mr. Paul R. Hudson, c/o The Postmaster, Bay City, Mich. Back marked "Made by A. C. Roessler, East Orange, N. J."
Notes for Cover Collectors: • High-resolution scans of front and back are provided; use zoom to inspect postmarks, cachet details, and backstamps. • No third-party grading; condition is shown in the images.