I have a small silver box wit niello decoration and am unable to identify all of the marks.
The box is 8.5 x 3.5 5.5 cm. Weighs 110g and is decorated all over with engraved niello decorations. Iside retains some of the gilding and contains and engraved name of P Turner(s) Birmingham.
The decoration on the top seems to show the burning of a city with mounted soldiers in the forefront.
I cannot identify the maker's mark and unfortunately the date seems to have been rubbed or missed being stamped. I have included images of the marks present on the inside of the curved lid and inside the curved body.
http://imageshack.us/g/819/img2074ex.jpg/