Original 1981 Dynavector Karat Ruby Cartridge

Hello there. My first post here at Audiogon.
I'm an old (now) Tech Hifi manager from 1980 and I am dusting off my equipment from storage. I'd like to reminisce but I have a question too.

Does an original Dynavector Karat Ruby cartridge w/ DV-6Z preamp have some value these days? I have both in there original packing and it's never been used. I'm sure a collector or maybe somebody could use it. The rca connectors need cleaning (oxidation?), not sure how.
I coulda swore they were gold :)

Should it be appraised or eyeballed by a local audio dealer?
Thoughts or opinions welcome. Thanks. Duder