This vintage metal shelf clip is a charming piece of history from the 1930s-1940s. It was made in the United States and was likely used in a grocery store to hold price tags or signs. The clip is in great condition and adds a touch of nostalgia to any collection. It measures .40 inches and has the number 40th engraved on it, which could have held significance in the store it was originally used in. This item is perfect for collectors of advertising memorabilia or anyone looking for a unique piece of American history.