Brand directory/Conn/Models by year/12B
Model catalogue

Conn 12B trumpet.

Coprion trumpet (Bb & A) — Introduced 1938 · discontinued 1955.

Maker
Conn
Model code
12B
Line
Coprion
Instrument
trumpet
Introduced
1938
Discontinued
1955
Status
Retired
Record confidence
Medium
Era check

Serial evidence places this line in the Elkhart era — your serial number decides which one your instrument is.

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Related Conn models
12A — Bb & A Coprion cornet
1938 · retired
12H — Coprion tenor trombone
1938 · retired
10B — Victor trumpet with Coprion bell
1955 · retired
10D — single Bb horn, 4 rotary valves with A-natural valve
1924 · retired
10DY — Connstellation double horn in F/Bb
— · current · $7,089
10I — Artist bell-front Bb euphonium
1962 · retired
All Conn lines, by introduction year:Models by year →