Warded Master Key-industrial use

Hand formed key with multiple ward cuts. This is a simple design reserved for industrial use. No fancy design embellisments just functionaly made for daily useage. This would have been carried by the Senior Foreman or Company President, and stricly controlled for security. The cuts form a step pattern to by-pass the lock case warding. There would be 5 keys in the series for the casewards and 5 levers. So 5 times 5 comes out to 25 different cut keys, or up to 25 doors that this Master Key would work on. The keybeard has a bilateral mirror image on both sides, indicating that the key was used to unlock/lock from both sides of the door. If greater security was required then only half of the keybeard was cut so the key could only be used from one side of the door. For example a one sided cut key could be used to lock the dorr from the inside by the employee, but not used to lock the door from the outside. In that way the employee couldn't leave the factory and lock the door from the outside.

Done