All About Pocket Knives

old 2 blade barlow has 11 on reverse of master blade and tip top on bol. any idea how old or price knife is in good cond.

I've got an old Tip Top Camillus barlow. I'm just guessing but I'd say made in the 1950's . These aren't worth a whole lot. $30 or so, depending on condition. Now if it was mint in the original box it might go $75 or more to a collector.