Canal Zone, Airmail Officials, 1941, 5¢-40¢ complete, type II, complete set in blocks of four, fresh colors, cancelled by Balboa Heights roller cancels, 10¢ with choice centering and wide margins, Extremely Fine, 5¢ Fine, others Very Fine-Extremely Fine, overall a Very Fine and rare set of blocks with the type II overprints. Scott No. CO8-CO12  $5,050. $0 (Image)