Business return envelope printed with "John M. Baer / Green Bay & Mississippi Canal Co., Appleton, Wis." Addressed in ink to Thos W. Gibson, Esq., Acting Asst Commissioner, Toronto, Ontario. Appleton duplex postmark JUN 26 3:30 PM 1900 and Toronto receiving cancel JUN 27 1900 on the flap. Franked with a 2-cent red Washington stamp; clear manuscript address and company imprint visible

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.