Sculpture
Puławszczak
A relief on a building in Poznań, Grunwaldzka 41a street. An aircraft might be a rendition of the 3rd prototype of PZL P.11, with a tail more similar to PZL P.7
From Wikimedia Commons (Art Deco › Art Deco by country › Art Deco in Poland › Art Deco sculptures in Poland › Art Deco reliefs in Poland). By Stiopa. CC BY-SA 4.0.