unused Block Larger Than four 1c-10c Louisiana Purchase (323-327), T. imprint and plate no. blocks of ten (5 x 2), the 1c, 3c, 5c and 10 also show sheet margin at R. and natural s.e. at L., the 2c shows sheet margin at L. and natural s.e. at R., all have beautiful rich color and all are never hinged, the 2c has few natural gum skips and the 5c has few natural gum wrinkles, a fine-extremely fine and scarce set, Scott retail $5,260.00+est.