(Solono) Benicia, Cal,/Jul. 3, red cds and large "12 ½" rate (Williams SOL-100) on 1850 stampless folded letter to Sacramento City that refers to unpredictable mails, Extremely Fine, one of the few covers with this fancy rate handstamp, ex-Salzer, Tatham. Estimate  $500 - 750. $0 (Image)