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Ohio Tool Routers |

Type 1. 071 - 1901-1906 Keen Kutter lettering across
center of casting

Type 2. 071 1/2 - 1907 Keen Kutter lettering

Type 3. 071 1/2 - 1907-1908

Type 4. 071 - 1908-1920. Open throat. Color varnished knobs.

