I imagine carbide was the step between oil lanterns and battery operated lights. I would estimate that it dates to the 1920s. There is a serial number stamped on the handle but no model number that I can find. A magnet adheres to the font but not the upper body or lens housing.
The lamp is in excellent condition. The lens is not broken and opens very easily, the water fill cap is functional, and the lower chamber is relatively clean. It would probably work with just some water and carbide.
It is 9 3/4" tall and the font is 5 3/4" in diameter.