Great Britain 1958 Sixth British Empire & Commonwealth Games imprimaturs, SG567/9varGreat Britain 1958 Sixth British Empire & Commonwealth Games imprimaturs, SG567 9var. A superb unmounted mint, with full original gum, set of three imperforate imprimaturs with N. P. M. handstamp on reverse. Provenance: National Postal Museum archive sale (1984 5). A very rare set from the first approved printing sheet as only 10 sets were released by the National Postal Museum. The 1958 Empire and Commonwealth Games were held at Cardiff with the