How much is this worth?

[Kattia]

We have a knife scrimshawed by John Hagnas. It has never been used and the blade has the initials SBS on it.

http://s1377.photobucket.com/user/kattia81/media/100_1090_zps4e105787.jpg.html?sort=2&o=0

 

[Jon Brand]

http://www.bladeforums.com/forums/s...MBERS-Please-read-this-WHAT-IS-MY-KNIFE-WORTH