Vtg Master Lock Store Display Board EMPTY No Padlocks Advertising SignVtg Master Lock Store Display Board EMPTY No Padlocks Advertising Sign This listing is for an original, vintage Master Lock store display board. This board was historically used in hardware stores to showcase the "World's Strongest Padlocks" line of products to customers. It is a great piece of advertising memorabilia for a collector, a man cave, or a vintage home decor enthusiast. The board features wood grain panels and an oval brass toned sign at