Nevada County Balance. Small lot of 14 covers from various different towns in Nevada County, a variety of different frankings & markings, towns include Grass Valley, Marysville (including pair of 3Ā¢ orange brown on cover), seven Nevada City covers or entires, North San Juan & Sweetland, mixed condition, F.-V.F. EstimateĀ $300 - 400. $0 (Image)