This one is a Bronze grade JFS. A rather common example when compared to some of the others. My opinion is the wear to the finish is probably caused by improper storage in a damp or humid environment. If the wear was caused by being attached to a tunic; the zinc would have worn down as well. The details on this one are still sharp.
The catch as you state has been replaced. Again, my opinion...this is a sloppy job and probably done in someones garage, not by a jeweler or a wartime factory repair. Value on this one would be very low.
Myself, I would pass and wait for another. These are not rare and the condition of this one would should you decide to sell it, nearly impossible.
Best Regards, fischer
PS. Here is one of mine
thank you for the info, your badge looks very nice...i,ll keep looking...cheers, jerry
Yep, a bronze one for sure. Stewy
agree the detail is great, i can see the bronze very nice in the photo, but in real you have to really stare,, thank you..