Probably The Best Lock ID Manual On The Market All new 2012 version of the Mortice Lock Identification Manual. To speed up Lock identification the manual is dived into sections BS locks, Non BS locks. The British Standard locks section, the lock are sorted by Gauge then sorted by type of hard plate fitted this mean very quick identification of the lock can be made.
The non BS section the locks are sorted by gauge and each section has enough information that will aid correct lock ID
At the foot of each page a drill point is given should the lock require drilling on BS locks an alternative drill point is given for bolt side drilling where the normal drill point would weaken the bolt, in the Non BS section alternative drill point are given for various locks