|Ready To Cast-Off U.S. Marine Postal Service, Detroit River|
Detroit Publishing Co.
Mike Skreptak Collection; Black Binder 4
c. 1911; a small mail boat dropping mail to a larger cargo ship on the Detroit River.
United States Postal Service
University of Windsor. Leddy Library
Click links to download Tiff images: Tiff Image 1 , Tiff Image 2