Show SIGNALING BY THE NAG N AG method in use in all the world great ports the important part played by flags in all maritime affairs cannot be over estimated besides signaling there are many other uses to which they can be put visitors to any of the big seaports like london or liverpool may often have seen a vessel flying a flag with a knot tied in one corner of it it Is not generally known that this sign Is used to attract the cus toms officer who knows when he sees it that the vessel wishes to ship or consume a quantity of bonded tores that Is tobacco spirits etc his presence being necessary to break the seal before such stores may be utilized |