Tardis/Police Box brooch

Probably better know today as a 'Tardis' from the TV series Doctor Who, Police phone boxes were used in London from the 1920s.
Although not in use in London today, there are still a few refurbished Police Boxes in London.

This brooch is made from blue laser cut plastic with a mirror acrylic backing,

It measures 37 mm W x 72 mm H with a silver plated locking brooch pin on the back.

Designed, cut and made in Australia.