This is a lithographic print from Das Plakat of 1918. This noteworthy publication represented the best posters in Germany and Europe from 1910 to 1921. They used a lithographic printing process to make faithful facsimiles of the original posters in a bimonthly journal for collectors.
The artist, Walter Schnackenberg, was celebrated as a graphic designer of posters painter and set design.
This 1920s poster for the german theater in Munich is 7 1/4 x 10 inches