I am in rural MN and it has been common to see these old catalogue archtops come in that belonged to a clients grandparents and in many cases were used in old time dance bands. Mostly as rhythm instruments I would guess as the finish is usually completely worn off in the first position.
Here is an old Regal that belonged to the client’s wife’s dad who fronted a dance band in central MN back in the 30’s and 40’s
https://youtu.be/XWXcjh7pAoc