Heavy blackletter; Rudolf Koch's very first type from 1909
On an old page loaded with script examples from the 1930s, the script is described as "Schwabacher (used by the Deutsche Reichsbahn [German Imperial Railway]." As a matter of reality, it is the first print of the Offenbach script master Rudolf Koch, who came out with this script in 1909.
At that time, it was provided the name "Neudeutsch" (New German). Later, it became popular under the name Koch-Schrift, and was at times the main script of the Deutsche Reichsbahn.