Brand directory/Conn/Models by year/20I
Model catalogue

Conn 20I euphonium.

Artist bell-front Bb euphonium, 3 valve short action — Introduced 1937 · discontinued 1971.

Maker
Conn
Model code
20I
Line
Artist
Instrument
euphonium
Introduced
1937
Discontinued
1971
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
10I — Artist bell-front Bb euphonium
1962 · retired
10K — Artist BBb sousaphone
1962 · retired
20J — Artist bell-front BBb recording bass
1934 · retired
20K — Artist BBb sousaphone (three valve short action)
1937 · retired
21I — Artist bell-up Bb euphonium
1957 · retired
21J — Artist bell-up BBb recording bass
1958 · retired
All Conn lines, by introduction year:Models by year →