Posted 9/2/2013 00:33 (#3302655 - in reply to #3302305) Subject: Re: IH 181 Combine
I think it was the precursor of the 503 with about 46 inch wide cylinder. The 151 was the precursor of the popular 403 built from 62 till late 60's with around 37 " cylinder. The 101 was around a 28 inch wide cylinder and I assume was very popular in the corn belt with the combine replacing corn pickers and shellers in the late 50's to mid 60's.