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I have gotten interested again in trying to figure out the manufacturing date of my WMC model AHH engine. I was given this engine in about the mid 70s. It was on a hay baler that sat outside. All of the painted on information on the engine tag was completely gone leaving only the imprinted information. I don't know which of two numbers imprinted on the tag is the model number. I went again to www.wiengines.com and tried a serial number lookup. The two numbers comes back with a month and year. The 22373 shows to be January 1936 and the 723377 shows to be August 1946. By the way my engine does not have the crankcase ventilation pipe going to the air filter housing. Instead it just has a brass elbow fitting with a metal ball in it screwed into the crankcase. I have attached a pic of how the letters and numbers are positioned on the tag. Any and all help will be greatly appreciated.
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