Bay Bridge San Francisco-Oakland Half Dollar

The legislation stated: "The coins . . . shall be issued only upon the request of the San Francisco Clearing House Association, upon payment by it of the par value of such coins, but not less than twenty-five thousand such coins shall be issued to it at any one time and no such coins shall be issued after the expiration of one year after the date of enactment of this Act. Such coins may be disposed of at par or at a premium by such association and the net proceeds shall be used by it in defraying the expenses incidental and appropriate to the commemoration of such event."