WANTED: National Lock Co (Rockford, IL) chest/drawer lock (Gerstner Chest)

[tachyhon]

I have a Gerstner tool chest that is missing the lock. I would like to find an exact replacement in order to avoid cutting into the wood to make something else fit.

I have found two examples online that match my case, both produced by The National Lock Co. and their model numbers are:

B72-1-8
B72-H-2

I am sure others will fit. Please let me know if you think you have anything that may match. For whatever its worth, the barrel of the lock is 1/2" in diameter. I have included a photo of the lock I need, along with a shot of mine. Many thanks!