File:Engineer FrankMann ATSF5001 Dec1968.jpg

Mann chugs down backyard tracks which extend thousands of feet and were installed at cost of $4.50 a foot. Engine is 16 feet long, weighs just under two tons and has steam pistons that develop 150 horsepower, more than that of many cars. Special tender car is capable of carrying 15 gallons of water, 40 gallons of diesel fuel. From "Ebony" magazine, December 1968.