Conlin (Tuolumne County). Manuscript postmark (Williams TUO-610) on August 8, 1903 cover to San Francisco, Cal., franked with 1903, 2Ā¢ carmine, open 15 May 1903 to 15 July 1904, a 14 month town, stamp partial torn away, Fine, this is the only cover recorded of any postmark from Conlin. EstimateĀ $150 - 200. $0 (Image)