ScientificAmerican1899-09-16.jpg Baseball 1942-10ThumbnailsScientific American 1912-01-20Baseball 1942-10ThumbnailsScientific American 1912-01-20Baseball 1942-10ThumbnailsScientific American 1912-01-20Baseball 1942-10ThumbnailsScientific American 1912-01-20Baseball 1942-10ThumbnailsScientific American 1912-01-20
Compressed air traction in New York City -- 1000 horsepower compressing engine.



Source: Steve Kirch, collector, and creator of a great website about SCIENTIFIC AMERICAN in the past

Restoration by: magscanner