Diameter 48 mm, inner bezel diameter 36.5 mm, inner depth to bezel 21 mm.
Gilt brass base, with shagreen covering and gilt rims and pins.
Wonderful unrestored condition. The shagreen is perfect, with no cracks or pieces missing. Excellent colour. Just two pins missing from the back and none from the bezel.
The hinge, catch button and catch are fine and the case snaps shut nicely.