I just got this lamp from an antque shop. He had dropped the shade, but made a great price on the lamp. I am guessing it is a 143. It has the pressing in the middle. On the bottom it says Coleman quick light. Numbers on each side are either 6 6 or 9 9, depending on which way is up. Also stamped with C Q. So I am guessing it is a June 1936 lamp. Oh it has the built in pump. And the lampshade holder is a bit odd. Other than the paint peeling off, and the pump leather needing some oil, I think it should work just fine. So, how's my guess? Worth $20.00 USD? -Ralph in the wilds of Missouri.