. . "If any shipper or shippers of platina, gold, gold dust, silver, bullion, or other precious metals, coins, jewelry, bills of any bank or public body, diamonds or other precious stones, shall lade the same on board of any ship or vessel, without, at the time of such lading, giving to the master, agent, owner or owners of the ship or vessel receiving the same, a note in writing of the true character" . . .