fastfarmalll wrote on Tuesday, January 24, 2017 (PST): The P @ O, stands for Parlin and Orthman, one was the banker and the other was a blacksmith, the spelling could be wrong . They started the P @ O company which IH later purchased. They were also brother in law's.They were pretty successful in the plow business. But that looks kinda like a corn planter shovel, for seeding corn on sandy land, where i farm we flat plant our corn, so cant tell much more about it.But those number would be correct, is my best guess, one was a left, and one was a right.No idea when it was built!! fastfarmalll wrote on Tuesday, January 24, 2017 (PST): I am sorry i really screwed up his last name,it was Orendorff, half of the P @ O company

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