civilian captain's cap

Curious what people here think Basil Rathbone's "undercover cap" from "The Secret Weapon" could be. It looks to maybe be a plain Crusher cap, or maybe a high crown Greek Fisherman cap? It looks extremely sharp to me, and I'd love to get something like it, although I've never seen quite such a...

Hello everyone, I have seen some older discussion on this subject, but no one has seemed to have a great answer. I am wondering where to find a civilian captain's cap like the one on Capt. Engelhorn in the film "King Kong" (see image below). It is somewhat like a U-Boat captain's hat, but...