There is NO HOLLOW BARREL KEY for this RAILROAD LOCK.

Nice old vintage railroad lock marked CNR (Canadian National Railroad) appearing to be in good working order and comes with chain  Measures about 3-1/2" by 3" in the closed position.  The Key Lock Cover is embossed with the CNR lettering.  There is no maker's mark on this lock but looks as new for the most part.   This type of lock would take a hollow barrel key to open.

Thanks for looking and good luck if you decide to bid!