Hi John, I'd be happy to help you sort out some of your spyders! So first, I'm going to make an assumption. The assumption is that you still have their boxes. If this isn't true, it will obviously lower value.
Jot Singh- made from '97-'99. Seen these sold anywhere from $120-180, though the detent is finicky so they've been going for a bit less lately. I would say you should expect around $150.
Viele- made from '96-'03. There is a fairly large gap in these from a seller's standpoint. Expect anywhere from $80-$200+ if you find the right bidder. Realistically, I'd say again aroun $150.
Gunting 440v- this model with 440 was only made from 2000-2002. I'd say you should expect $200+ as a serious offer for this knife, though obviously some go for less and some for more. Yours is the earliest model.
Herbst titanium- surprisingly, these usually sell from around $120-$170 (at least that I've seen) on the open market. The fact that yours is ps makes it a bit less valuable, so I'd say anywhere from $130-$150.
Large wegner- this will probably sell for the least in your collection. Expect between $100-$120 for this. Again, the ps doesn't really help it's value.
Hope this helps! Again, you never really know who MUST have your knife, so these are just rough guidelines of what these have sold for in the past. Good luck selling them John!
Edited to add: best prices will probably be obtained on eBay. Not sure how things work on the bf exchange, and whether it puts the seller at a higher risk of selling for less...
Also just re-read and saw you have no boxes. This will decrease value by roughly $20-$40 depending on the knife. Sorry, was too busy staring at the pics!
