This is a vintage kampkook model 2522 made by the american gas machine company of albert lea minnesota. This is a two-burner model in beautiful condition look at the picture of the burners, under them it looks like new this stove has hardly been used. It is exceptionally clean. My online research shows these were made around 1947. It has some scratches and paint loss as shown. The tank has the pump at one end and the fill cap at the other. The knobs turn as they should. The stove was made to burn leaded gasoline which was more plentiful than white gas at that time.