Typed envelope addressed to Mr. J. H. Kulp, 2690 Boston Boulevard, Detroit, Michigan. Postmarked Greenfield, Mich., Oct. 21, 1929 with an Edison Celebration "Light's Golden Jubilee 1879–1929" slogan cancel and a 2-cent red postage stamp. No publisher or series indicated on the cover; front bears the typed recipient details. Back shows plain flap with no additional markings
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.