Sheet contains TWO imperforate between pairs at positions 33 & 34 (cert incorrectly states 34 & 44) & 43 & 44, Also are 3 other imperforate stamps on 3 sides at positions 5, 15 & 25 which would make for 3 transitional imperforate varieties. Then there are 8 imperforate pairs Scott #1579a
A TRULY UNIQUE SHEET WITH VERY RARE VARIETIES