Silver pill box

Silver pill box. Very interesting and unusual pill box in the shape of a Gladstone bag as named after the British Prime Minister, William Ewart Gladstone. There are 2 marks on the bottom, but can't quite make out exactly what they are. The weight and quality of this item tells me it's silver.  Although there are no markings to confirm this It closes with a lovely click and the detail on handle and hinges etc are fantastic. Got a lovely feel to it. Probably vintage, but could be older. 3 tall 4 cm long 2 1/2 cm wide.