Round Valley, Cal., 12/2, 1881 (Inyo), manuscript postmark (INY-1638) on 1874, 3¢ green entire to Sonora, Cal.; small corner nick, Very Fine, only three manuscript examples of this discontinued Post Office have ever been recorded, all were found as a group and all are recorded on an 1874 3¢ green entire, the Post Office was located north of Bishop in a valley at the base of Round Mountain. Estimate  $500 - 750. $0 (Image)