unused Block of Four 1841-61, the selection of 1d. values showing the various combinations of die, alphabet, watermark and perforation, comprising mint blocks of four of 1841 plates 117 and 165 and 1854 (Feb.- March) SC16, all lettered DG-EH, 1855 (28 Feb.) SC14 OJ-PK; unused blocks of four of white paper Alphabet II, III (2) and IV, also single examples of the progression from 1840 1d. (used) to 1864-79 1d. (unused), fair to fine