Rare vintage brooch - estate piece

In the shape of 'Brisbane'

A pretty opal with flecks of blue, pink & green on a goldtone setting

It's difficult to get the colours accurate in photos, so please allow for variations

Opal diameter approx 0.4 cm

Length of brooch approx 3.1 cm 

It has a butterfly clasp which has Ballou Reg'd on it, but I can't be certain that this clasp originally belonged to this brooch or not, so the brooch itself may, or may not be Ballou brand

Good used condition. 

No issues that I can see but I suspect that there would be general use & storage marks, due to its age

Pick up welcome

Happy to combine postage but please wait for invoice before going to checkout 

NB: Returns not accepted and in the highly unlikely event that an exception is made, the return postage will be paid by the buyer