SARAWAK 1923 1c on 10c bright blue, second printing with bars 3/4mm apart, lower right corner block of 4 with plate number, showing the error with "en" of "cent" scratched out and "ne" overprinted on R9/5, very fine o.g., a lovely example of the remarkable variety, which resulted from the misguided belief of the printer that the second setting should reproduce the first exactly, a great rarity, only 13 existed, with pencil signature of the noted US dealer Eugene Klein on reverse of right margin (Image)