just got this one and am not sure of the model? It came out of a barn but smells like it was under the barn! Man its agot a cool tank though! I never saw one like it before. Its about 4" wide and 18" long cyclinder tank. It must hold 3 gallons of gas? If you looked at the bottom it doesnt look like it was run much, unforetunatly it sat in a bad spot for a long time. Anyone know what model or have any info???