Except as this contract shall otherwise provide, any doubts or disputes which may arise under this contract, shall be referred to a Board composed as provided in Article VII hereof for determination. If, however, the Contractor shall feel aggrieved at any decision of this Board upon such reference, it shall have the right (save only as to the allowance and determination of costs as provided for in Article VII hereof) to submit the same to the Secretary of War, whose decision shall be final.