Cope's states, Chraftsman Tool Co. Conneaut, Ohio, Maker of the Craft Wrench. Patented November 12, 1907, by George Heckling. (Patent 870,781)
The same wrench was first made by the Attwood Wrench Tool & Stamping Company, which made the wrench from 1912 to 1913, in 1913 the company name changed to Attwood Mfg. Co. ceased operation in 1914.
I'm not sure if you can tell which company made the wrench.