Chile, 1862, 1c lemon yellow, double impression, one inverted, o.g., margins to just in at right and top, bold color and prominent impression doubling, F.-V.F., a very rare unused example of the 1862 1c Double Impression with One Inverted, few examples are known and all are from the same sheet, unlisted in Scott in mint condition, ex Blank. Scott No. 11a  Estimate $750 - 1,000. $0 (Image)