Unknown Gretsch-style case for 17” arch top or acoustic 50s-60s Black and grey

This looks like a Gretsch guitar case but there’s no badge on it. Regardless, it has an arched top and back and is completely solid. It fits 17” (lower bout) guitars like Gibson L5 and L7 or a jumbo flattop. All of the latches work perfectly although the spring on the hasp part of the lock is broken. It fastens but it doesn’t spring up. I hope that makes sense. There is no key for the lock.

Compared to most of the vintage Gretsch type cases that I’ve seen for sale this is in very good shape. It’s perfectly usable for gigs and it looks cool. The Gibson L7 shown in the photo is not included