Schwerer Gustav, Lt. Pineapple

Schwerer Gustav 800mm Railway Gun (X59NLE8W9) by HappyBattleSheep

Lego 80-cm Kanone(E) Dora L40-6 by Pegasus047 on DeviantArt

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KY10005Cannon Cannon Main Battle Tank Model Building Blocks Toys

That is one Angry Robot: ToysEasy Metal Souls YV2312 Doragus

Schwerer Gustav Kazi in Hessen - Lorch

Schwerer Gustav railway gun (2:1) Minecraft Map

Gulo Gulo WW2 Military Heavy Tank Building Blocks Gustav German Railway Gun Dora Bricks Set Models Kid DIY Toy For Gifts H0917 From Sihuai04, $322.57

Kazi No.KY10005 German 80cm K[E] Railway Gun Dora Review in comments. (forgive poor pics, I didn't want to move it to better location) : r/lepin

Military MOC 853pcs Schwerer Gustav Model Heavy Gustav Cannon Gun