This is a full NOS bottle of Lee Smith & Son Mfg. Co. (from Pittsburgh, PA) Keystone Alloy that comes in its original box with original paper included. Bottle is in excellent condition with no damage or mentionable wear, very nice condition. Bottle was found in an estate with the glass cap taped onto the bottle with masking tape. The tape is old and dry, and it will be left on to prevent spillage during shipment. The original box has only some light surface wear as pictured from decades of storage. The bottle measures 3 1/2 inches tall and contents 5 troy ounces of caulk. This scarce caulk would make a great addition to any dental collection.