This is original ammunition railway wagons for Schwerer Gustav, displayed in czech republic : r/ww2

Paulista War Armored Trains

Schwerer Gustav - Wikipedia

German railway gun hi-res stock photography and images - Alamy

Krupp 80 cm Kanone Schwerer Gustav (Dora) Railway Gun

Gustav gun hi-res stock photography and images - Alamy

Contains 3,846 pieces. It was developed as siege artillery. The gun fully assembled weighed nearly 1,490 tons, and could fire shells weighing 7.7t

WW2 Military Schwerer Gustav/Dora Model Building Blocks Railway Gun Bricks Toys

German railway gun hi-res stock photography and images - Alamy

German railway gun hi-res stock photography and images - Alamy

Krupp 80 cm Kanone Schwerer Gustav (Dora) Railway Gun

Paulista War Armored Trains