The Doncaster Oil Storage Tank ( can also represent a Water Tank/Tower ) is manufactured out of 300GSM Flexcore board. It is extremely detailed. The tank is made by laminating 3 seperate layers of board together to provide depth of detail in the tank walls... the roof is made from 2 layers to allow the for rivet detail. The tank is supported on the lattice base by 2 sets of triangulated girders. 
 
This is a flat pack kit in red oxide.
 
Height - 120mm
 
footprint - 60mmx60mm