This is an nice clean, vintage 7" long, 3/8" socket ratchet wrench! It is marked "ARMSTRONG NO. FAB-51". It features a reversible ratchet, controlled by the lever switch on the head. It has a close gear ratio, so it's good for tight spots. This wrench has a nice black finish, is very clean, no rust, minor signs of being used, not bent, works fine! A quality made wrench by a well known maker, with a history dating back to the 1880's!