Tower of Hanoi
This 32 piece Tower of Hanoi was commissioned by a customer here in London.
The 200mm diameter base is CNC machined from solid brass and stainless steel, and each hand-finished 3mm thick disc is individually numbered. The whole piece weighs a whopping 5.5 kilograms.
Following the rules of the Tower of Hanoi, this puzzle would take over 4 billion moves to complete.