1851 1¢ Blue, Balance Lot. A wonderful lot of 68 covers used domestically with a wide variety of cancels & usages, included Circular rate covers, Drop rate covers, 1st Class rate covers, & Trans-Continental rate covers, all appear to be franked with 1¢ type II or IV, mixed condition, please inspect, an important lot for the specialist. Estimate  $3,000 - 4,000. $0 (Image)