The “French Connection” was in theaters. The Mets and the Yankees finished in fourth place. The city referred to itself as the Big Apple for the first time in advertising campaigns. And that same year, 1971, the Metropolitan Museum of Art introduced a colorful piece of metal as its admission ticket, a tiny doodad that came to occupy a large place in the reliquary of New York City, along with Greek-themed coffee cups, I ♥ NY T-shirts and subway tokens.