One correction, the last Jets that Jack made sold for $1000 each.
As for the value of an old original Gamemaster goes, a lot depends on the condition. Although they are still great shooters, the best value lies in their collectors value.
We don't see them come up for sale that ofte, so it is hard to say what they are worth by comparing to recent sales.
I have three of them, and two are in excellent shape. I would not take less than %400 for each. Now that is just me, and if I put them up for sale at that price I don't even know if I would get a bite on one.
We always say that these old bows are worth what someone will pay for them...no more, no less. With that in mind, I suggest you put it on ebay and let the bidders set the price. Set a starting bid, but don't go so high that no one will bid on it.
If you will go to the Tradgang History and collecting forum and post a description and pictures, someone my step up and suggest a value. Without knowing the condition and seeling pictures, I couldn't.
This may not help you much, but it is the best I can do for now.
Jack Millet
PAPALAPIN