Widmann, Walter (1883- after 1939) & Schütte, Karl (1898-1974): Welcher Stern ist das? (Stuttgart: Kosmos, 1939; at least 33rd editions, last editor: Herrmann, Joachim (*1931)) ;
illustrator -> K. Porupsky ; illustrator -> Erich Haferkorn ; illustrator -> Hans-Hermann Kropf ; illustrator -> C. Ludeaux ; illustrator -> Hans von Roemer (1896-1970) ; illustrator Botho von Roemer (1896-1980) ;
astronomical drawing
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