Below is a general reference chart for the most popular High-Standard models. Note that this data is based on general trends and records may be incomplete, especially for earlier models.
Starting in July 1975, High Standard transitioned to alpha-numeric serial numbers, primarily utilizing , ML , and later SH prefixes.
Most early High Standard pistols used a straight numerical sequence. Note that some models, like the Model C (S/N 500 to 3,116), had their own unique series. Approximate Year Range Starting Serial Number Ending Serial Number 1949 – 1954 1955 – 1959 1960 – 1965 1966 – 1971 1972 – 1975 Alpha-Prefix Series (1975 and Later) high standard serial number chart
: Introduced July 14, 1975. This prefix was used during the Leisure Group era.
SOLID (1:11M) > LADDER (1:96K) > RADAR (1:10K) > REPEATER (1:10K) > BINARY (1:65K) > LOW # (1:1M) > TRINARY Below is a general reference chart for the
For extremely detailed research, collectors often refer to the High Standard Collector's Guide or consult the John Stimson High Standard Data archives, which contain original factory shipping records. High standard shotgun serial number dates
Understanding the timeline is crucial for using the serial number chart: Most early High Standard pistols used a straight
Rarest → Most Common