American Aircraft–brand dryer built by the American Laundry Machinery Company.
ALMC was one of the largest manufacturers of commercial/industrial laundry and textile equipment. Founded in early part of last century company was bought by McGraw Edison in 1960.
https://www.nytimes.com/1960/04/16/...merger-electrical-equipment-maker-to-buy.html
As we all know McGraw-Edison owned Speed Queen, which it sold to Raytheon in 1979.
ALMC built many great laundry machines good number are still in use today.
One of the most popular and to some laundrymen best ironers were built by ALMC. They are Super Sylon Ironers, Hypro Ironers and Sylon Ironers.
https://www.tingue.com/category/1/american-laundry-machinery
https://laundryledger.com/tingue-offers-remanufactured-flatwork-ironers/
https://www.wotol.com/product/ameri...carousel-7af5653b-8f5a-4e62-90ad-691207e47bbf
Box on top of dryer tells it used steam to produce heat. Steam dryers were and still are common for industrial and commercial laundries. This goes back to early days of "steam laundries". Such places used steam to not only power machinery, but also to heat ironers, water, heat water in washing machines (steam injection), steam presses, hand irons and so on.
Electricity replaced steam for motive power once motors were developed that could run washers, dryers, ironers, etc.. doing away with system of belts. But steam still provided a heat source.
Both gas and electrically heated dryers can reach higher temperatures than steam. This means faster drying time. Where natural gas or propane is available many laundries will use it for heating over steam, but that depends upon how numbers crunch out.