mint left margin block of 25 (positions 21-25/61-65), carmine overprint, stage I (14.Aa), varieties including "A L" of "Canal" spaced 2mm at position 41 (14.1), second and third "As" defective in left "Panama" at position 22 (14.7), "M" tall, thin, and without serifs in left "Panama" at position 41 (14.8), third "A" short at top in left "Panama" at position 25 (14.9a), "8" in Type B at positions 35 and 41-44 (14.12), and "8" in Type C at position 51 (14.13), some perforations separated or reinforced, very fine and scarce (Scott $760 as singles)