This trademark has a long history with knife manufacturers and many of the best knife companies made knives with this mark. According to Goins E.C Simmons started using the Keen Kutter trademark in 1870-1940, Shapleigh used it from 1940-60, and Val Test from 1960-65. So for over 140 years this mark has been used on their products and more specifically pocket knives.
Here is a nice old Keen Kutter marked Cattle knife. It has grooved bolsters, Nickle Silver Trim, jigged bone handles and an etched blade, what more could you want in an old pocket knife??
Let`s see your old Keen Kutter`s!