Gray's Cal. Express, clear express company marking in a shield design, also ms. '($)1.10' express charge, used with partly clear red Oswego N.Y. datestamp and matching 'Paid' and ms. '40', to San Francisco, edgewear and ink spots, light soiling, still presentable and nearly fine, very scarce, this small company operated between San Francisco and Sacramento, and is listed for 1850 only