Please take a look at the attached images. I believe it is a Tire Pump for a Ford Model T. There isn't any identification on the bottom of the base casting except for small triangle that is part of casting. Any help would be greatly appreciated.
According to some Model T tool facts, pre 1920 pumps were brass, double barrel pumps then going to single barrel brass up into mid-twenties then single barrel steel with "Ford" script on one side only of the foot piece.
That is a Model T production pump. There was a late version with Ford script on one side of the foot only that carried on into early 1928.
I believe these cast iron pumps were made by Walker, Racine, Wis.