Postcard showing view of Central District on Hong Kong Island in the 1920s. The streetscape looks decidedly different nowadays; I doubt a single building from this photo is still extant, although the tram tracks in the centre of the street do still exist and host the world's largest collection of double-decker trams that ply the streets with frequency all day long.
Stamp commemorating a stamp! The first stamp was issued in Hong Kong in 1862 and features Queen Victoria. Commemorative cancellation mark as well from the territory's central post office.