- 01: Introduction
- 02: History
- 03: Propellants, Firearms, and Ammunition Development
- 04: Modern Firearms Manufacture
- 05: Small Arms Ammunition
- 06: Evidence Handling Procedures
- 07: Equipment and Instrumentation
- 08: Examination of Firearms
- 09: Cartridge and Shotshell Examination
- 10: Characterization and Evaluation of Fired Projectiles
- 11: Bullet Comparison and Identification
- 12: Gunshot Residue and Distance Determination
- 13: Toolmark Identification
- 14: Communicating Results
- Resources
National Institute of Justice
The Research, Development, and Evaluation
Agency of the U.S. Department of Justice
Proof Marks
Home > Examination of Firearms > Firearms Identification Information > Proof Marks
Proof marks on a Beretta pistol
Some older foreign manufactured firearms, such as pistols from Spain and Italy, will list a location, rather than a manufacturer. These firearms are cottage industry type weapons without a specific brand name. The examiner must rely on proof marks when trying to identify these firearms. There are a number of reference books that display proof marks and their meanings.
