Historic Researches on Dewey Bros. Loco

Sinclair 1907, 511.
Sinclair 1907, 511.

Since I stumbled on a picture of a Dewey Bros. 0-4-2T, I’ve fallen in love with this little engine. My first encounter happened during a Google picture search for industrial steam locomotives.
This particular image came from a book written by Angus Sinclair in 1907: Development of the locomotive engine, where it served as an example for oddities of engineering history. Several universities offer free online access to the book.