Healdsburg, Cal. (Sonoma). Apr 9, 1863 postmark (Williams SON-2680) on 1861 3¢ Nesbitt entire to Vallejo City, Cal. with bold strike of fancy "Flag with Union", cover crudely repaired, which would benefit greatly from professional restoration, Fine, one of the finest examples of this rare and popular patriotic cancel. Estimate  $300 - 400. $0 (Image)