‘Master Keying by the Numbers’

‘Master Keying by the Numbers’ is a technical instruction book on master keying.

Fifth Edition, Hard Bound with 399 printed pages covering:

• Terminology
• Cylinder designs and specifications
• The Premise Survey
• Hardware Schedules
• The Standard Key Coding System
• List format progression
• The Standard Progression Format
• The Matrix Format
• Intelligent Cross Keying
• Key Control Programs
• Encryption Techniques
• Construction Keying