A very unusual  late 1700s/ early 1800s double snuff shoe. Very similar to the prisoner of war examples, except this one has a circular glazed window on the lid with a picture of a women inside. The picture would have been placed in it when the snuff shoe box was made. the hinged lid lifts up for storage of the snuff.
These double snuff shoes were usually made as love tokens or wedding presents.
A small scratch/imperfection to oneside of the picture. 
The snuff shoe measures 10cm l x 5cm w x 2.6cm h at the back of the shoes.