by raimundo » 4 May 2006 8:48
look at the outside of the lock carefully, see if there is a difference in the thickness of the laminations, put the key in the lock, mark the exact place where the key exits the lock body, lay the key on the outside laminations indexed exactly where you marked it comeing out of the lock body, see if there isn.t a thicker lamination corresponding to one of the T crosses on the key. Not all of these locks still have the thick lamination in the stack, and some of them have two springs, and need two T crosses to open, these two T crosses will have the space of two normal laminations between them, or in some newer locks there will be the space of three laminations between the necessary crosses.