This is a ‘dual’ cast-iron cobblers shoe last- there are two different shapes on which to stretch and shape leather to make shoes. Cast-iron was used as it maintains its shape when in contact with wet leather and the mechanical stresses of stretching and shaping shoes.
Nowadays these heavy items are used as book ends, door stops or simply as decorative industrial forms.
There is something very satisfying about repurposing an industrial antique- giving it a new purpose and lease of life- and the functional design of the last means it is stable either end up.
The cobblers last is for sale: $AUD45