Need help in understanding subject pictured on postcard and translation of handwriting on back
I would really appreciate help with the following in relation to this postcard mailed from Schonheide on the German side of the German / Czech border in 1943 to Prague:
1) There is no explanation on either side of the card as to what is pictured. Is it war-related propaganda material or a simply artwork or something else?
2) The handwriting appears to be in the Czech language thus I would need a translation of what is written into English from anybody familiar with the Czech language.
Thank you very much in advance for any help that can be extended in understanding this postcard better.