Elegant Combination Box

The vendor describes this as:
Hallmarked in London in 1913 by William Hornby, this stylish design, George V, Antique, Sterling Silver Cigarette Case, Stamp box & Vesta combination, has a plain and handsome style. The case has a section for cigarettes, a space for matches, with a striker, and three slots for stamps, all of which are gold plated. The case measures 5″(12.5cm) long, 3″(7cm) wide and 5″(2cm) deep with a weight of 6.8 troy ounces.
At the time of writing, it is being offered for sale here.