Archive of the sounds of work.
By a consortium of six museums – Torsten Nillson, project leader
Air pump from Prussian steam locomotive: http://www.workwithsounds.eu/sound/air-pump-steam-locomotive/
Freesound
“Browse, download and share sounds”
By Frederic Font, Gerard Roma, and Xavier Serra. “Freesound technical demo.” Proceedings of the 21st ACM international conference on Multimedia. ACM, 2013.
Developer API: https://www.freesound.org/help/developers/