By the Sea Bird. Manuscript ship endorsement on folded letter to San Luis Obispo, with letter datelined "Sacramento, Feby 9, 1852" to Captain G. Dana; minor tone spot, Very Fine, an extremely rare ship letter usage and the only known usage by the steamer Sea Bird, who ran from Sacramento and down the California coastline. Estimate  $1,000 - 1,500. $0 (Image)