Topic starter
07/05/2020 1:09 pm
A bit of history about Joshua Stoddard, who invented the steam calliope in 1855.
https://www.keyboardmag.com/miscellaneous/joshua-c-stoddardinventor-of-the-steam-calliope
https://patentimages.storage.googleapis.com/ff/59/f1/bcff6a7b9e5d3d/US13668.pdf