This is a postcard version of a poster by Eugen von Baumgarten; for more information about the background and design, see ID #2097.
It was not uncommon for persuasive maps to be reproduced and distributed in postcard form, as an inexpensive means to reach a larger audience than posters. The collection includes five examples: ID #1179 (Le Plan Pangermaniste), #1203 (Englands Not), #1238 (Portugal N'est Pas un Petit Pays), #2256 (Portugal Is Not a Small Country), and #1182 (L'Entente Cordiale).