His most important creative period lasted from 1919 to the late 1920s. His productivity and willingness to experiment made him a fitful, yet successful, artist in
Mecklenburg during the early
Golden Twenties. Some prominent examples of his work during this time were
Boats with Fishermen (1922) at the
Rostock Museum of Cultural History and
Warnow Fishermen (1923) at
Rostock Art Gallery. In 1923, Tschirch created his
expressionist cycle of paintings centered around the biblical
Song of Songs. They were rediscovered in 2015 after being lost for more than 90 years. Tschirch was also considered a master of
portrait art who was adept at capturing the character and traits of his clients. Several members of Mecklenburg's
bourgeoisie were portrayed by him. Examples of this are the portrait
Max Samuel (1920) and the series of twenty
Heads (1921), the latter of which was only labeled with numbers. == Affiliation with Nazism ==