1938-51 KGVI Issues Queen Mother 1d+1d with two 'OS/NSW' Perfins BW #P71e for the Government Printing Office, to Perth in 1943 with Sydney machine cancel, Cat $500. A very desirable "doubleton". Ex John Sinfield: sold at the Prestige auction of 8.11.2013 for $437.
Auction Category: COMMONWEALTH OF AUSTRALIA - Postal Stationery - Postal Cards
Postal Stationery - Postal Cards , AUSTRALIA , State Government Officials , NEW SOUTH WALES , Official mail , Perfins - Official , Postal Stationery