A couple of potato mashers have popped up in the condition I've been searching for, for some time now. However, I think I'm pretty sure one of them is a reproduction.
The first one I think has a chance, but has no date stamp on the canister or stick as far as I can tell and I thought they all would, and the second one has a 1939 date stamped on the canister with a 1943 stamp on the handle and is errily similar to this one here:
Hand grenade. genuine or repro?
Potato masher #1, which I'm not sure about. Maybe there's a stamp that's not showing up, as I know some stamps were not very hard strikes:
#2, which I'm pretty sure is a very nice reproduction: