, initialled and dated "13/8/48". Unique. Photo" /> essay POSTAL STATIONERY REGISTERED ENVELOPE: 1949 20c. composite essay comprising an embossed head of the ruler with handpainted surround in blue with lettering, etc. in Chinese white, on card (95x108mm.) marked<I> "Approved"</I>, initialled and dated<I> "13/8/48"</I>. Unique. Photo | Christie's