Brass replica of a ticket stub for the gala performance on October 22nd, 1983, celebrating the centennial of the Metropolitan Opera in New York. 

This was sold by the Met as a souvenir, and is today a desirable collectible. This is a keychain that can be used as such. Size is 1.4 x 2.75 inches, needs some cleaning and polishing, minor scratches, in very good condition. See scan of the front, verso is blank.