Panzer I Moves along a Forest Track during Polish Campaign

A panzer crewman looks on as a Panzerkampfwagen I Ausf.A moves along a sandy forest track during the Polish campaign, 11 September 1939. Note the thick white Balkenkreuz national insignia on the turret, characteristic of that campaign. The vehicle (which is a 2.Serie/La.S chassis as denoted by the view port on the rear face of the superstructure) has additional fittings, which were ordered to be attached at various times during the year 1937. They include a "Nebelkerzenabwerfvorrichtung" (smoke candle deployment rack) on the hull rear, as well as armored cowls over the engine air intakes and exhausts. Note also the single engine exhaust mufflers on the rear of both fenders and what appears to be a pennant on the antenna.

Source :
Book "Panzer Vor: German Armor At War 1939-45" by Frank V. De Sisto
https://audiovis.nac.gov.pl/obraz/167/h:476/