1916, 1 P. - 3 P. reverse on registered envelope 2 1 P. (size 152 : 96 mm) as registered cover from "LOME 15.12.15" to Buchs / Aargau in of Switzerland with transit cancellation from London and arrival stamp, reverse brown staple traces, scarce postal stationery, expertized with photo expertize Holcombe (1998)