Today in 1900, US Patent 640860 A was issued, an invention of William Baum Jr., for a “Combination Beer Bottle and Glass.” There’s no Abstract, but it’s described in the application like this. “The invention consists of the combination, with a main body portion or bottle, of a top portion detachably mounted thereon and adapted to be used as a drinking cup or glass, and a base portion also detachable mounted on the body portion and adapted to act as a support for the detachable cup portion.” It seems like an interesting idea, perfect for travel since you wouldn’t have to pack a glass, but I don’t think it ever quite caught on.