Great Britain 1961 2½d-1s6d Post Office Savings Bank Centenary imprimaturs, SG623/5A var Queen Victoria stamps circular date stamp for 'NO

circular date stamp for 'NO

Very fine perforated block of four on gummed unwatermarked specially prepared handmade paper

tied by a superb ‘B64’ numeral cancellation

This flight log documents his final three test flights at Ellington Air Force Base in Texas on June 16

A very scarce specialised piece of philately

Great Britain 1961 2½d-1s6d Post Office Savings Bank Centenary imprimaturs, SG623/5A var Queen Victoria stamps circular date stamp for 'NOGreat Britain 1961 2d1s6d Post Office Savings Bank Centenary, SG623 5A var Imperforate Imprimatur Set A very fine unmounted mint set of three imperforate imprimaturs, issued to mark the centenary of the Post Office Savings Bank (18611961). Each stamp bears the official "NPM IMPRIMATUR" handstamp on the reverse, indicating origin from the National Postal Museum archive. The set includes: 2d (red) featuring Queen Elizabeth II and stylised thrift plant