Dual Currency Postal Orders

Queen Elizabeth II Dual Currency Postal Order type one, first issued 1970 

Poundage under twin denomination 

Queen Elizabeth II Dual Currency Postal Order School Specimen 

The Post Office traning school used  real stamps, postal orders, etc all overprinted

Queen Elizabeth II Dual Currency Postal Order type one, first issued 1970

Old stock postal orders after decimalisation had the poundage blocked out

Queen Elizabeth II Postal Order 1969, last £.s.d. issue. Effectively an experimental issue as a

trial for the new decimal issue. Has an over all GPO watermark and machine readable serial