Lot
1811 
Official Seal: 1972, Unlisted Partial Booklet, First 10 panes are normal, panes 11-13 imperf between tab and first seal, pane 11 also with blind roulette 13 (double rouletted 6½) between seals 2-3, 3-4, and 4-5, pane 12 and 13 also double rouletted 13 between 2nd and 3rd seal and imperf between 3-4 and 4-5, unlisted in cat., fine to very fine (photo on web site). Scott No. OX42 var. Estimate $200 - 300.