139. Right to recover wages and salvage not to be forfeited.- (1) A seaman shall not by any agreement forfeit his lien on the ship or be deprived of any remedy for the recovery of his wages to which, in the absence of the agreement, he would be entitled, and shall not by any agreement abandon his right to wages in case of the loss of the ship or abandon any right that he may have or obtain in the nature of salvage, and every stipulation in any agreement inconsistent with any provisions of this Act shall be void. (2) Nothing in this section shall apply to a stipulation made by the seamen belonging to any ship which according to the terms of the agreement is to be employed on salvage service with respect to the remuneration to be paid to them for salvage service to be rendered by that ship to any other ship. | 
