When I was a boy a kid brought one to school and we all played with it. I don't remember if he had shells with it but it wouldn't have been unusual in those days. It was a 410. He said some uncle had brought it to him. This was in '52 so it was not too long after WWII. It looked for all the world like a Mauser 98 rifle but took shotgun shells.
In those days we played with war trophies instead of cap guns.

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