The listing, Lot #1: 5 Master Locksmith Skeleton Keys - P&F Corbin Company -1900's has ended.
These keys come direct from the estate of my wife's grandfather who was a Master Locksmith in the 1940's through the 1980's. There are 5 keys that served as "master" keys made specifically for the locksmith trade, and were manufactured in the early teens through the mid-1930's by P&F Corbin Company. I found these in in a jar that were kept in an old leather bag that housed vintage cylinders,locks, and locksmith tools of the trade. My wife's grandfather would use this bag when he made house calls so I'm told.