Rare Antique Robeson Blacksmith Anvil Hammered Knives Advertising Sign

This rare antique Robeson Cutlery anvil hammered household knives cardboard advertising sign features a blacksmith hammering on an anvil shaping a knife. It displays well with some edge wear at various point son the die cut sign. I am not sure how it mounted or stood up on the back and it measures about 23" x 17" in size.