Greenfield Tap & Die Co.Clawson, Chris2020-06-212020-06-21June 20, 2https://dspace.montaguearchive.org/handle/MHS-01376/3860Westinghouse Electric & Mfg. Co., Springfield, Mass.Food Mixer5/8 - 18" No. 4 "Acorn" Die and Holder threading 5/8" Cold Rolled Steel. Machine: No. 53 Acme Automatic. Part is for Westinghouse food mixer.Photograph also shows "Greenfield 5/8 - 18" thread "Go" gage used in gaging this operation.