Hardware company brand in Louisville, KY Belknap Hardware. Some made by Boker, Camillus, Utica, and Schrade. Can't say who made that one.
Scale pins look like a KA BAR, but ????? Nice knife, 1930's -50's ?? Scales haven't shrunk. Good sign.
Value, as usual, is a matter between an informed buyer and seller, but it could be pretty good. Primbles are widely collected. If t's "India Steel Works" it's a bit higher than just Primble. Look at e-bay for two-blade "clasp" folding hunters with celluloid scales to get a price range, or someone here could have an opinion. Good luck