This is a really nice Apothecary Pharmacy Jar. It has a ground glass stopper and is not threaded. It is ground inside where the lid fits. No damage. It is great for any kind of collectible. Marbles, buttons or your favorite collection. It is 12″ tall and 5 1/2″ square at the bottom. A very nice old piece. This piece is quite neat as it is square. The top of the jar and the stopper are ground glass.