This is a Stanley Tools Level No 3 made by the Stanley Rule & Level Company in New, Britain, Connecticut. This level was probably made sometime around the 19teens and maybe even a bit later in the 1920s. There is a US patent date of 11-3-08 on the face of the hardware. The level is in overall great condition. The Stanley Tools logo is in great shape with good color. The leveling vials are in working condition.