Silent Watchman Corp Electrical Deadbolt Heavy Duty Lock With Keys. Condition is Used. This item has been moved around so there are some scratches bumps and bruises there's a little bit of rust in one of the corners please look closely at pictures  it is in great  collectible condition  normal wear for this  item and its age ..Up for sale I believe it is an electrical type of lock because it has the wiring but I am not 100% sure it is marked with a number 11940 and there is also another lock in the back of it which I do not have the key for and that is marked 3098... Comes with five keys and wiring .. I have not tested it electrically so i do not know if it is working but the keys do open and close the deadbolt.. once again not tested sold as is you might need to do some work to it or figure something out to get it to work 100% ..This is sold as is really cool heavy duty lock.
From the way the keys look this is probably from the 70s.