The remaining numbers indicated the production number within the month.įrom 1987 on, the two-digit prefix number plus 50 will give you the year of manufacture. The fourth character indicated the instrument: Other cup mouthpiece serial numbers are not available at this time.

1980 - 1986 serial numbers are for student trumpet and cornets only. The third character indicated the year within the decade (defined by the first letter). Note: From 1987 to present, add 50 to the serial number prefix to calculate the year of manufacture.

The second character indicated the month of the year The first character of the serial number indicated the decade In March of 1974 an alpha-numeric system was established:

The years 1967 to March 1974 (when Conn moved their brass manufacturing to Abilene, Texas), is a period where at least some of the instruments were inferior in quality 90s Conn 1050B Trumpet Good Condition Orig Lacquer Orig Case 129.99 25.00 shipping or Best Offer Vintage Conn Director Shooting Star Trumpet - 1960s Serial L08838 w/Case & MP 299.99 24.

1980-1986 numbers are inexact, and may relate only to student level trumpets/cornets

Conn trumpet serial number gk620019