Bing clockwork locomotive gauge 1 (circa 1920)

I found this gem in Germany when visiting the Christmas town of Rothenburg ob der Tauber in an antique dealer.
I added a Dinky toy car (1/43) for scale comparison
Bing was a German toy company founded in 1863 in Nüremberg, Germany by two brothers, Ignaz and Adolf Bing. Originally, Gerbrüder Bing produced metal kitchen utensils. They began toy production in 1880 and incorporated in 1895. By 1905, Bing was the largest toy company in the world, and Bing's factory in Nüremberg was the largest toy factory in the world