Hello,
Welcome to the forums! The Buck Fisherman was in our line for quite a few years and had undergone a few significant changes before it was first changed to the "Guide", and then later discontinued. I would be happy to help you determine the vintage, and value of yours. I would need to know what the blade stamp says, and if the knife has the scaler teeth on the blade backbone. If you can give me this information, we should be able to get a better idea of the worth. Blade forums has a place for knives for sale and it would be best to list it there should you decide to sell it.
Take care,