You are looking at a rare vintage metal tin chocolate flat mold or stamping. This is a block of 4 bars with a '16 to 1' (ratio 16:1) design. This is referring to the 1896 Presidential race in which the Democratic candidate William Jennings Bryan railed against the gold standard. He supported bimetallism and free coinage of silver at a ratio of 16:1. His opponent, Republican William McKinley, supported the gold standard.
These stampings were made from bronze dies, they were hand carved by skilled craftsmen during the 1920's and 1930's and soldered into metal frames and filled with chocolate. I've found this one at an estate sale together with a lot of other metal chocolate molds, metal flat molds or metal stampings. The flat molds or stampings collection were bought somewhere in the 50's or 60's from a company in Houston, TX called Faroy Inc. They sold flat molds from the 1920's and 1930's as souvenirs and with some they put 4 holes in the corners and added an explanatory card, four brass nails and wrapped it in plastic. I have a few like that, but the majority came without. Please see last pictures. Price is for one only.
It is in excellent condition. Any dark area on the front you could maybe see in some pictures is reflection from my camera.
Size: Approx. Mold: 6 inches by 4 1/2 inches wide, 1/4 inch thick. Block of 4 bars itself: 5 1/4 inches by 3 1/2 inches wide. Card: 5 inches by 6 1/2 inches wide.
I combine shipping, so if buying more than one I will refund any overpaid shipping.