A striking two-stamp Polish issue honoring key aircraft used during the defense of Poland in September 1939.
The 3.40 zł stamp features the PZL.37B “Łoś”, Poland’s advanced twin-engine bomber, depicted with dynamic shading against a green gradient.
The 90 gr stamp showcases the agile PZL P.11C fighter, accompanied by a smaller aircraft silhouette, set on a violet-pink gradient.
Both stamps carry national emblems and military insignia, reflecting Poland’s resistance during the early days of WWII.
Highly collectible for aviation, military history, and Polish philately themes, this pair stands out for its bold illustration style and historical depth.
Ideal for thematic displays focused on aircraft engineering or the 1939 campaign.