unused Block Larger Than four -- 1 solot indigo (Type III) lower left corner block of twenty (4x5), and 1 att rose-carmine block of fifteen (3x5); a few split perfs otherwise fresh and fine mint. Siriwong 1-2, B12,000

Details
unused Block Larger Than four -- 1 solot indigo (Type III) lower left corner block of twenty (4x5), and 1 att rose-carmine block of fifteen (3x5); a few split perfs otherwise fresh and fine mint. Siriwong 1-2, B12,000