The first photo shows a hole in the neck that reminds me of some Schlage levers that I have (turn key 90 degrees, poke into the hole, and the lever pops off the shaft allowing access to the cylinder). In this lock there are two holes 180 degrees apart. However I position the key, I feel a little bit of springy give down in the hole, but nothing else happens. I'm obviously missing something. Can someone enlighten me?
I tried searching on line and found nothing that looks like this lock.
thanks