Picture-souvenir or a piece
 

Stone slab consisting of two plates glued together. Front litsvaya a Florentine mosaic (with precision detail, polished parts of different types of stone, marble, can cinnabar).
Dimensions: 15cm. to 8cm. at 0.7 cm (base 0.5 0.2 cm face)
No author, title, date. (Probably 19, the beginning of 20c.)
Actually interesting: it is an independent product or one of the parts for others facing the object??

Neither any thoughts, or not interested??

I think that this kind of Facing detail, but nothing to say about it I can not.