The High Standard Sport King with the serial number 340724 was manufactured in 1957. High Standard typically used a sequential numbering system for their firearms, and this particular serial number falls within the production range for that year.
our Hi-Standard Sport King dates to the year 1974 with the serial number provided.
Your serial number indicates that your Hi-standard sport King,series 103 was made in the year 1967. Hum, I thought 1968.
1953
1952
1950
1952
1959
1981
1957
About 1974
1969
Need condition and model.