Auction 250 - 256 Day 3

1887/96: 40 pa. on GB 1887 2½ d. purple on blued, an unused corner marginal block of thirty (6 x 5), all overprinted SPECIMEN in black (Samuel type GB9), of fresh brilliant colour, superb og. with nearly all unmounted og. A delightful block and probably one of the largest multiples now extant.