Bad A$$ Compressor!

Armer dial corp plant near Aurora Ill. had a train car that had four big air plain engine on it that ran all there compressed air systems in the plant. Look wild seeing it, I forgot how many cylinders each, But each engine was over 8' tall and said to run off propane, naturel gas and gasoline if it had to, three cylinders making compression 4 cylinders running is what I was told . But this was over 40 years ago.
heck they could have be 16' tall from where I seen them from