Big gun!

[USS ALASKA]

If you go to the Heinz History Center, they have both of these guns on display in their Great Hall. The Rodman is a reproduction made by 3D printing, but it's to scale and it weighs 9 tons!

https://www.heinzhistorycenter.org/...17/03/RodmanCannon_HHC_032917_SarahReck12.jpg

Wow - never realized there were 3D printers for something this large and heavy...I learn something here everyday...

Cheers,
USS ALASKA