Poultry House lantern has no built in pump so must use an external pump to pressurize it. Could not see the main selling point on the lantern, which says, "the hens that lay are the hens that pay" so I re-stenciled it. Lit lantern picture shows the faint "before stenciling" lettering. Interesting note, the lantern was pierced by a curved farm implement, possibly a curved hoe which was repaired by the farmer. This is seen at the center of the lantern, and a bulge on the left side shows where the farm implement almost went out that side. Just needed to replace the generator to make lantern work again. I found this at an antique store in my home town and it didn't cost much. A simple search on the web showing pictures or mentions of poultry lanterns vs. the desirable Coleman Arc lanterns shows that the poultry lantern is found 3 times fewer in number than the Arc lantern. Thank you for looking. Wish you English could find these to fettle, swishing around almost a gallon of vinegar to clean the inside font out, either tires you out or toughens you up!!