unused -- 1a. (2) showing spectacular misplacement of perfs; 1926-33 ½a. marginal block of six (2x3) showing a double row of perfs in the margin and two horizontal rows with partial doubling of the perfs, the top pair defective as a result of this error; 1a. corner vertical strip of four showing dramatic misperforation as a result of paper creasing and another vertical strip showing doubling of horizontal perfs; 3a. block of eight (4x2) with margin at right showing spectacular doubling of perfs affecting four stamps.