First, a hard truth: The original Iver Johnson company closed its doors in 1993. Many production records were lost or destroyed over the decades—especially during a major fire in the early 20th century.
: Features dual-letter or unique letter prefixes (e.g., C sequences indicated specific 1920s runs). Iver Johnson Revolver Serial Number Database BEST
Proofhouse has compiled date tables for: First, a hard truth: The original Iver Johnson
