Great Britain 1965 1s6d Salvation Army Centenary (Phospor) imprimaturs, SG666pvar Zanzibar stamps A scarce King George V

A scarce King George V specialised item

perforated 'SPECIMENS' (type D21)

Brilliant mint example with large part original gum

dated "3 JUL 1883" and endorsed

Great Britain 1965 1s6d Salvation Army Centenary (Phospor) imprimaturs, SG666pvar Zanzibar stamps A scarce King George VGreat Britain 1965 1s6d Salvation Army Centenary (Phospor), SG666pvar. Superb unmounted mint full original gum left hand marginal imperforate horizontal pair of imprimaturs showing "Extra Pearl" variety in position R. 17 1, each stamp with a "BPMA" handstamp on reverse. A scarce horizontal pair from the very first approved printing sheet. Exceptional provenance as they were released from the British Postal Museum Archives in 2014. Prior to this they