Picked this up today and haven't found any info on it, help would be appreciated

Based on compilation of Moline Plow Co. implement wrenches in the Dec. 1988 MVWC Newsletter, MOLINE DRILL A1037 was supplied with at least two popular models of grain drills produced by the company.  (G-M  & P.F. series )  If you find a grain drill from either of those models, you can than figure out what each of the openings fit.