I could not find any information of this token looking at my limited resources. I do have some general information on the town of Ismay.
Ismay is located in Custer County Montana, Custer County is located in Eastern Montana. The County seat is Miles City.
Ismay currently has a population of 17 and has a Post Office and a Church. If found the following information about Ismay when I was looking for information on the ‘Union Factory’.
1914 population - 300
1920 Population -250
1933 population - 277
Ismay was a Milwaukee station town originating in 1907. It is believed that the town was named from the daughters of a railroad employees (lawyer /manager?) Isabel and either May or Mary…
The above token I would think it is early 1910-late 20's?
I wish I had found additional information.
I'm assuming the token is 21mm in size. If I had to put a value on it ~$200 if there is only one.
Roy Rubick
Montana Token Collectors Reference Manual