You step on his toes.
Seriously, this is a tough one. It’s hard to go “Ha ha, Nazis”. But at the same time, this is certainly an amazing find. When I see something like this at an estate sale, I try to imagine that the deceased was Indiana Jones, or some other person proud of his role in punching Nazis for our country, who kept it as a trophy. But you just know there are some deplorables who have a more reverent attitude towards things like this. Yuck.