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: This list is not correct for Conn saxophones (see Conn Woodwind Serial Numbers) or Conn bugles (see Pan American Brass Serial Numbers). That includes cornets, trumpets, horns, trombones, euphoniums and basses. The third character indicated the year within the decade (defined by the first letter). This page contains a list of Conn serial numbers for brass instruments. The second character indicated the month of the year

The first character of the serial number indicated the decade Pmax 16bar,Serial no.69221435/2010,1m3250IMP
Hainbuch TEP12
0301508.

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 book/picture-rock-five-serial-installments-one/d/732063614. 1980-1986 numbers are inexact, and may relate only to student level trumpets/cornets /book/journal-british-association-psychotherapists-number-32/d/732009264.

Conn trumpet serial number 365359