Langstile Deluxe Plectrum Banjo

I bought this banjo a couple years ago but unfortunately I've developed an allergy to nickel and I don't want to modify it. I can't recall when it was made but it's old. I've included pictures of all the identifying numbers on it. It's in fantastic shape for its age. Previous owner fixed some divots in the fretboard and refretted it. Plays great, sounds great. Has an instrument jack (pictured) for some reason unbeknownst to me. There are no electronics inside. Sound samples upon request.