Postcard from John Heartfield and George Grosz adressed to Otto Dix, Berlin, 16 June 1920 on the photo (from left to right): John Heartfield, Eva Grosz, George Grosz, Otto Schmalhausen [ref: abk] Dear friend Dixdada, the Dada exhibition will open on June 25 (Friday). Maybe you can already be in Berlin for a preview on June 24 (Thursday), we would very much like for you to stay with us. Send the etchings (Radierungen) etc. soon.
![Postcard from John Heartfield and George Grosz adressed to Otto Dix, Berlin, 16 June 1920 on the photo (from left to right): John Heartfield, Eva Grosz, George Grosz, Otto Schmalhausen [ref: abk] Dear friend Dixdada, the Dada exhibition will open on June 25 (Friday). Maybe you can already be in Berlin for a preview on June 24 (Thursday), we would very much like for you to stay with us. Send the etchings (Radierungen) etc. soon. Kurt Schwitters, Travel Sketchbook, Man Ray, Expressions, Otto Dix, Mail Art](https://i.pinimg.com/236x/3d/3b/05/3d3b05db1602de8ba6d43cbb45399cf7--going-postal-john-heartfield.jpg)