The holy grail to a collector of knives like that is 'New, In the Box, with the papers'!
A used knife like that might be worth 1/4 as much as a NIB one like the above.
I can't put a dollar value on yours, but don't plan to retire on it.
Camillus knives don't tend to bring the money of comparable Case knives either, as there are way more Case collectors looking for them.
rc