1853 NGC graded AU 58 gold U.S. Assay Office Of Gold San Francisco California. During the California gold rush the government’s response to the need for an adequate coinage was slow and never satisfactory, two institutions were established, the State Assay Office of California and the United States Assay Office, which provided an unconventional and partly successful attempt to supply a frontier area with an acceptable quantity of an "official" circulating medium. The private coinage proscription was not enforced by the public or government because the State Assay Office failed to mint enough ingots for the local demand. Ironically, an institution that was designed to replace the need for private gold minting actually preserved it. This American coin is housed in a sealed NGC holder. Good overall condition. Provenance: From a prominent collectors estate in Coral Gables, Miami. In house, Hill Auction Gallery continental USA domestic shipping $25 plus insurance. H.A.G., will refer local third party shippers for International buyers upon request.