Marketed by Sears Roebuck, probable manufacturer Poloron. The fuel tank, made of steel on this example (another version had an aluminium tank) is of the full width of the stove (half-a-metre, twenty inches). Nicely welded seam. Mounted in slots in the stove frame, secured by a knob screwing into the tank at one end and by a flanged boss on the pump cap at the other. I featured servicing of the pump in a post in the Fettling Forum HERE. Not the usual type of non-return valve. I serviced the control valve and generator. Air valve and inlet (draws on air space at the top of the fuel tank). Assembled, graphite seals on fuel and air controls replaced. Fuelled up the tank to the fill level with Aspen white gasoline. Followed the lighting instructions ... ... and it fired up easily. Secondary burner tried out. A very hot maximum (grate glowing red ... ... and effective simmer. Raising and lowering the hinged lid/windscreen requires depressing thumb-buttons on either side of the stove. Front legs double as a carrying handle. Back panel. Base. Same spatter-finish paint on the lid as on the fuel tank. Kettle on ... ... soon boiling. Unusual design and a distinctive paint finish. Very functional though and an O-ring instead of a pump cup leather washer works exceptionally well on this model with no ‘missed’ pump strokes. The NRV design contributes to the easy pump action and is (as it must be!) fuel tight.