Vintage postcard, MICHIGAN STATE AUTO FERRIES Between Mackinaw City and St. Ignace, linen picturing the ships City of Munising City of Cheboygan and The Straits of Mackinac, used dated 1940. See pictures for details on the condition. Size is 3 1/2" x 5 1/2". The black border is so all the edges can be seen and is not part of the postcard itself. NOTE: All of the postcards I have listed are guaranteed to be 100% authentic originals. They are all clean and ready for display. Thank you for your purchase, I appreciate it.