The drawer of a bill and any endorser may insert therein an express stipulation-
(a) negativing or limiting own liability to the holder;
(b) waiving as regards himself some or all of the holder's duties
The drawer of a bill and any endorser may insert therein an express stipulation-
(a) negativing or limiting own liability to the holder;
(b) waiving as regards himself some or all of the holder's duties