… eras switched from “early” to “mid”, continued with the 1818 John Adams model.. and the same thing being developed by Doge and John Knowles – which all completely failed.
(Photo: an early model industrial machine for punching leather)
… eras switched from “early” to “mid”, continued with the 1818 John Adams model.. and the same thing being developed by Doge and John Knowles – which all completely failed.
(Photo: an early model industrial machine for punching leather)