Main index > Articles > Conn Baritone and Euphonium recognition guide

Conn Baritone and Euphonium recognition guide

Here is a little table I made to help identify Conn baritones and euphoniums based on the bell and valve configuration. The first table is for baritones, the second for euphoniums. Model numbers in italics are for theoretical model numbers that haven't been found "in the wild".

Conn Baritone recognition guide
Valve Configuration	Single bell front	Single bell up	Double bell, large bell front	Double bell, large bell up
Top action 3 valves	-	64I	N.A.	N.A.
Top action 4 valves	-	68I	-	72I
Top action 5 valves	N.A.	N.A.	-	76I
Front action 3 valves	14I	66I	N.A.	N.A.
Front action 4 valves	-	70I	-	74I
Front action 5 valves	N.A.	N.A.	-	78I

Conn Euphonium recognition guide
Valve Configuration	Single bell front	Single bell up	Double bell, large bell front	Double bell, large bell up
Top action 3 valves	48I	80I	N.A.	N.A.
Top action 4 valves	52I	84I	56I	88I
Top action 5 valves	N.A.	N.A.	(Note 1)	36I, 92I
Front action 3 valves	10I, 20I, 50I	21I, 82I	N.A.	N.A.
Front action 4 valves	22I, 24I, 54I	25I, 86I	58I	90I
Front action 5 valves	N.A.	N.A.	30I, 60I	94I

Note 1: According to Conn's system for model numbers on baritones and euphoniums in the 1920's, the double bell, bell front, front action five valve euphonium should be the 62I. In fact the catalogs consistently list it as the 60I. The fact that this isn't an error is reinforced by the fact that the later short action version is the 30I and not the 32I. The double bell, bell front, top action five valve euphonium by the logic of the system should have been the 60I.