The "Best" and most authoritative guide for Iver Johnson serial numbers is widely considered to be the work of , specifically his book: Iver Johnson’s Arms & Cycle Works 1871-1993 . Quick Reference for Dating Your Revolver

For certain shotgun and revolver models (especially the "Champion" line), Iver Johnson used a letter-based code to represent numbers, based on the name of the city where they were based: . F =1, I =2, T =3, C =4, H =5, B =6, U =7, R =8, G =9. 4. Safety Warning: Black Powder vs. Smokeless Knowing the production year is critical for safety. Iver Johnson Revolver Year & Info: Expert Q&A Guide

The Iver Johnson Revolver Serial Number Database is a must-visit resource for anyone involved with Iver Johnson revolvers. We highly recommend it to collectors, researchers, and law enforcement agencies seeking accurate and reliable information on these firearms.