PM1 : Margaret Thatcher signed 1989 Parliamentary FDC
Benham large silk FDC 1989 Inter Parliamentary Union Centenary Conference, with matching 11th April 1989, Centenary Conference London SW1 postmark, signed by Margaret Thatcher and Michael Marshall MP, Chairman British Group I.P.U. Benhams own code for this cover is BLCS41. Very rare signed by Thatcher.
