Great Britain 1965 700th Anniversary of Simon de Montfort's Parliament (Ordinary) imprimaturs, SG663/4var.
A very fine unmounted mint, with full original gum, set of two imperforate imprimaturs, with "N.P.M. Imprimatur" handstamp on reverse.
A very scarce set of imprimaturs from the first approved printing sheet being one of only ten available sets.
Provenance: National Postal Museum Archive Sales 1984/5.
SG Catalogue Value: £4,500.