Corbin Russwin 650F00-630

hey guys alright today we are going to talk about old Corbin knobs you would typically find these on buildings built from say the like forty late 40s to 70s era there were a couple of different variations of them this is one of the older styles I believe and you were typically trying them on like warehouses and commercial buildings and every so often like offices in old buildings from that era and I'm going to show you how to take it off the door and take it apart to rekey it so to begin with when you have one of these you this particular one is a 1001 a H key way which is pretty common from that era and when you go to the inside to take it off you will see no screws and no visible way to take it off the door so there are a couple of methods that you can do to take this off the door to rekey it or replace it in case it's broken so we're gonna get started and we'll start with the number