You might try customcallsonline. I had 2 turkey calls and a duck call that my great uncle made back in Arkansas, that I hunted with all the time. Then someone told me they were worth money, So I got on that site and a few other places, long story short, I got $1400.00 for calls I had kept in crappy boxes, and exposed to the elements not knowing their value.
If you have further need of help let me know and I will tell you what more I found out. That way you can stay away from PCbay and all their B.S. and stay connected with the people that perpetuate the shooting industry.
Another worthwhile website to protest ebay and their anti-gun agenda...
http://www.PetitionOnline.com/ebay0001/