Very unusual chunky rectangular silver locket.
Unassuming at first glance, the plain silver exterior hides a fabulous secret. The hinges open left and right to reveal a palette of eight watercolour paints!
(you can still buy refills online that may fit)
 
Isn't it amazing! And so simple and modern looking.
 
Shown here on an antique silver curb chain which is not included - but i can find you one. (this one is my own)
All you need now is a retractable antique silver brush, and maybe a propelling pencil. 
I have a silver calendar version available!
 
weighs - 26.93g
measures - 24mm x 25mm (not incl bail)  and 7.5mm deep 
Branded on the side 'ROB ERSON 154 PICCADILLY'
Hallmarks for Horton and Allday
Birmingham 1901
Excellent antique condition