W. Higby M.C. Manuscript free frank on cover to the Superintendent of the Mint in San Francisco, original enclosure datelined "Washington, D.C., March 1st, 1864" with introduction of Mrs Gronard for possible employment, cover docketed "May Gronard, Sacramento" at top, light cover toning at left, Very Fine. Estimate  $150 - 200. $0 (Image)