This is a nice clean bicycle type adjustable wrench from the 1930's era. It's in very good condition overall with only minor wear. It measures only 5" long and is straight with very good jaw alignment! Marked with a stamped diamond logo that has the letters "U.S." inside the sheild. I believe this to be the later Mossberg wrench company logo. Also marked "MADE IN U.S.A." on the opposite side. The "TC" mark is most likely an past owner's mark. I must say it is a nicely made wrench in very nice shape!