unmounted mint Block of Four 1940 Centenary collection of imprint/plate number blocks of four, all different and comprising ½d. (4), 1d. (29), 1½d. (5), 2d. (41), 2½d., 3d. (4), 4d.-1/- (one of each) and 10d. on 1½d. (4), a couple unlisted in C.P.; fine unmounted mint