I purchased one (marked K3) in the early '90's at the Charlotte Auto Fair. It was a similar situation as the Carlisle event described above. Probably someone selling off the NOS after the company died. As a gear head & engineer, it was too cool not to buy. It probably began my 3/8" ratchet...
Since the title of this thread is "What kind of tools have you found in the road??", I thought I'd post what's embedded in the road in an intersection near my home. Technically, it is IN the road.....