1971 Decimal currency ½p on ½d, 1½p on 1½d, 5p on 6d, 10p on 2s, 25p on 5s, 50p on 10s, matching lower right corner blocks of 4 showing ‘1‘ or ‘1a‘ (½p, 25p, 50p) plate numbers, unmounted o.g. (except 10p hinged). Useful range of positional multiples.