A very large, heavy wrench, that was made somewhere between 1930 and 1960. One side says, MFD. by Crescent Tool Co. Jamestown NY. The other side says, 24 IN forged Crestoloy steel made in USA. This wrench was used for many years, on heavy equipment in the lumber/logging industry, by my dad. It shows lots of wear, but there is lots of use left in it. A good collectors item too.