Sorry Chief... I'm not a source. I do have a collection of odd keys I collected as a youth that I'll give a look tomorrow. It would be a near crime to breach that lock by destroying it. I'd be more inclined to find someone to pick the lock. It's likely a pretty simple lock designed to keep the honest honest.Speaking of which, @olbriar PLEASE let me know if you have access to the key to an old American Scale Manufacturing company penny scale.