Antigua SG4 6d Blue-green Perf 14 to 16 Compound with 11 to 12.5 Fresh M/M Cat 3250

1862 Aug 6d Blue-green no wmk Perf 14 to 16 (at left and at foot) compound with 11 to 12.5 (top and right) fresh M/M. A very fine example of this rarity with lovely. Ex Dallas (lot 110)with Fredl cert (1976) from a pair (of which this is the left stamp). Still of SG Stock Card