A postcard designed by Rolf Keller for Lederbogen Verlag. The text says: Best wishes for the beginning of school. This image does not show the whole postcard; I have cut off the margin (about one cm) around the picture since it had been written on.
I cannot date this card exactly. It does not show the printing license code typical of GDR printed media. The System of printing licenses had been introduce in 1951 (see https://de.wikipedia.org/wiki/Druckgenehmigungsverfahren), so this card should be latest from 1951. A letter by Rolf Keller dated February 23rd 1959 tells us that he started working for Lederbogen in 1945 “… Lederbogen is opening their trade fair stand fort he last time. In March the have to dissolve the company, an old customer (since 45) goes down the drain that way, who brought me 6000 per year on average. Friday morning I am driving to the fair to design the Lederbogen stand.” (“… Lederbogen hält zum letztenmal seinen Messestand offen. Im März muß die Firma liquidieren, ein alter Kunde (seit 45) geht damit flöten, der durchschnittlich 6000 im Jahr einbrachte. Freitag früh fahre ich zur Messe, um den Lederbogen-Stand zu gestalten. ”) I do not know what was the reason for the liquidation oft hat company, it might have been for political reasons since many private companies in the GDR where transformed into state owned ones or integrated into larger state owned companies.
So the earliest date for the card would be 1945. However, the quality of the paper and printing is quite good and there was probably no demand for such cards directly after the war, so I think it is very unlikely that this card is from the immediate post war time. I would therefore date it to around 1950
The motive of the card, however, is older. It shows Rolf Keller’s son, Svend Keller (born in 1928), as a young boy (around 1935) in the Kellerfamily’s apartment in Chemnitz, so probably Rolf Keller used a sketch or photograph from the 1930s as a basis for this card.