This is a vintage advertising flyer for the Boot-er-oo which was a sort of a cap gun that shot a ball from the top of a hammer when it was struck on the ground.  The flyer states near the bottom that it was from 1924.  Printed on the front side of a paper measuring approximately 8.5 by 11 inches.

Vintage condition; Discoloration; Small tears at the edges; Fold lines.