The Conn Slide Trombone Model List

This page is an updated, full trombone model number list. It includes models missing from the model number list, those that were added between 1965 and 1969, and corrections to the list where necessary. The choice of 1969 as an end date is due to the fact that Conn was bought by MacMillan in 1969/1970. New models after 1970 are therefore not included. End dates past 1970 are given, when known.

I have included an extra column to indicate the year(s) when the instrument was (at least) in use. If both the "Year Introduced" and "Year Discontinued" column is filled in, the "Years Used" column is left blank (no need stating the obvious). Italics indicates "educated guess", bold indicates dates probably incorrect. All trombones are in Bb unless otherwise indicated.

The following list is by no means complete or even correct. If you find an error, or know of a model of trombone that falls into the criteria mentioned above that doesn't appear on this list or is produced outside the years indicated on this list, please let me know (see main page for e-mail).

Conn Slide Trombones Model Number List
Model Number Model Name Year Introduced Years Used Year Discontinued
- #? Bore Bb Contrabass trombone 1901 - 1902
- #4½ Bore Bb New Wonder Bass trombone with rotary valve - 1917-1919 -
2H #1½ Bore Artists' Small Bore with 6½" or 7" Bell (Wurlitzer Special) - 1913-1927 1929
3H #1½ Bore Artists' Small Bore with 6½" or 7" Bell (Wurlitzer Special) - High & Low Pitch - 1913-1927 1929
4H #2½ Bore Artists' Medium Bore with 6½" or 7" Bell (Wurlitzer Special) - 1919 1939
4H #2½ Bore Artist Special with Nickel Trim 1936 - 1941
4H #2½ Bore Artist 1940 - 1954
4H #2½ Bore Artist with Light Weight Slides 1940 - 1954
4H #2½ Bore Medium Bore Artist Special with Light Weight Slides 1940 - 1941
4H #2½ Bore Victor 1954 - 1958
4H #2½ Bore Victor with Light Weight Slides 1954 - 1958
5H #2½ Bore Artists' Medium Bore with 6½" or 7" Bell (Wurlitzer Special) - High & Low Pitch - 1919 1932
6H #3 Bore Bb Symphony Small Bore with 7½" or 8" Bell 1911 1913-1927 1928
6H #3 Bore Bb Artist Symphony reinstated 1937 1983 1985
7H #3 Bore Bb Symphony Small Bore with 7½" or 8" Bell - High & Low Pitch 1911 1913-1927 1928
8H #4½ Bore Large Symphony - 1913 1934
8H #4½ Bore Artist Symphony with red brass bell 1954 1954-1974 1970's
9H #4½ Bore Large Symphony - High & Low Pitch - 1913 1934
10H #1½ Bore Small Bore Innes - 1912 1930
10H #3 Bore Victor with Coprion Bell and Light Weight Slides 1955 - 1963
11H #1½ Bore Small Bore Innes - High & Low Pitch - 1919 1930
12H #? Bore Bass with Piston Valve to F&E - 8½" Bell. Tuning slide in slide only. - 1919 1923
12H #2½ Bore Coprion 1938 1939-1949 1955
12H #2½ Bore Coprion with lightweight slides (special order only) 1940 - 1955
14H #? Bore New Invention Bass with Piston Valve to F&E. Tuning in slide only. Becomes New Wonder Bass 1910 - 1921
14H #3¾ + #4½ Bore Duo-Bore Medium Bass with rotary valve to F & E Natural. Tuning in slide. 1927 - 1932
14H #2½ Bore Bb Director 1954 - 1974
16H #1½ Bore Alto - 1919 1948
17H #1½ Bore Alto - High & Low Pitch - 1919 1948
18H #3 Bore Tait Model Tuning Device in Slides - 1919 1924
18H #3 Bore "Frisco" Artist with 7", 7½" or 8" Bell 1924 - 1931
18H #2½ Bore Bb Director with Coprion Bell 1954 - 1970
19H #3 Bore Tait Model Tuning Device and Slides - High & Low Pitch - 1919 1926
20H #? Bore Combination Slide and Valve trombone - 1919 1929
20H #2½ Bore Connquest 1954 - 1955
21H #? Bore Combination Slide and Valve trombone - High & Low Pitch - 1919 1929
21H #3 Bore Connquest March 1955 - November 1955
22H #? Bore Alloo Model - 1919 1924
22H #1½ Bore Small Bore Artist Ballroom Model - Tuning slide in Bell 1928 - 1932
23H #? Bore Alloo Model - High & Low Pitch - 1919 1924
24H #? Bore Large Symphony Innes - 1919 1924
24H #2½ Bore Medium Bore Artist Ballroom Model - Tuning slide in Bell 1928 - 1951
24H #2½ Bore Medium Bore Artist Ballroom Model with Light Weight Slides - Tuning slide in Bell 1940 1941-1948 1951
24H #2½ Bore Bb Artist 1958 - 1970's
25H #? Bore Large Symphony Innes - High & Low Pitch - 1919 1924
25H # Bore Medium Bore Artist Ballroom Model - Tuning slide in Bell - High & Low Pitch 1928 - 1951
26H #2½ Bore Medium Bore Symphony Innes - 1919 1924
26H #3 Bore Symphony Ballroom Model - Tuning slide in Bell 1928 - 1948
27H #? Bore Medium Bore Symphony Innes - High & Low Pitch - 1919 1924
27H #3 Bore Symphony Ballroom Model - Tuning slide in Bell - High & Low Pitch 1928 - 1948
28H #? Bore Slide Trombone in C - 1919 1920
28H #? Bore Alloo Model with valve to E 1920 - 1924
28H #3½ Bore Symphony Ballroom Model - Tuning Slide in Bell 1928 - 1929
28H #2½ Bore Connstellation 1949 - 1953
30H #2¾-#3¼ Bore Burkle Duo-Bore Medium 1934 - 1958
32H #3-#3½ Bore Burkle Duo Bore Large 1934 - 1962
35H #2½ - #3 Duo-Bore Eb Alto (Special); Tuning in slide 1965 1965-1971 1970's
38H #2½ Bore Medium Bore Artist Ballroom Model - Tuning slide in slide 1925 - 1930
38H #3 Bore Connstellation 1954 - 1956
40H #3 Bore Ballroom Model - Tuning slide in slide 1925 - 1934
41H #3 Bore Ballroom Model - Tuning slide in slide - High & Low Pitch 1925 - 1934
42H #3¾ Bore Ballroom Model - Tuning slide in slide 1925 - 1930
44H #2½ Bore Connqueror 1932 - 1951
45H #2½ Bore Connqueror - High & Low Pitch 1932 - 1951
48H #3 Bore Connstellation 1956 1956-1983 1985
50H #3¾ Bore Director Bass with F rotary change 1965 1965-1983 1985
58H #2½ Bore Artist (Government Model) 1955 - 1958
60H #1½ Bore "C" Slide Trombone with Bb attachment - 1919 1932
60H #5 Bore Artist Symphony Bass with F rotary attachment. Tuning slide in slide, red brass bell 1968 1968-1972 1970's
61H #1½ Bore "C" Slide Trombone with Bb attachment - High & Low Pitch - 1919 1932
62H #2½ Bore Simons Duo-Bell Model with 6½" and 8" Bells 1920 - 1925
62H #5 Bore Artist Symphony Bass with F-D dual rotary attachments. Tuning slide in slide, red brass bell 1968 (reinstated 2001) 1969-1972 1970's
64H # Bore Large Bore Symphony with Piston valve to F & E 1920 - 1923
65H # Bore Large Bore Symphony with Piston valve to F & E - High & Low Pitch 1920 - 1923
66H # Bore Medium Bore Bass with Rotary Valve to F & E - Tuning slide in Bell with 8", 8½" or 8¾" Bell 1920 - 1925
67H # Bore Medium Bore Bass with Rotary Valve to F & E - Tuning slide in Bell with 8", 8½" or 8¾" Bell - High & Low Pitch 1920 - 1925
68H # Bore Large Bore Simons Duo-Bell Bore 1920 - 1922
70H #? Bore Fuch's Model in Bb with F valve & Slide for E-Natural 1920 - 1923
70H #4¾ Bore Large Bore Bass with Rotary valve to F - Tuning in slide 1924 - 1927
70H #4½ - #5 Bore Duo-Bore Large Bass with Rotary Valve to F & E-Natural. Tuning in Slide. 1926 - 1937
70H #5 Bore Bass with Rotary valve to F - Tuning in slide 1937 - 1955
71H #5 Bore Artist Symphony Bass with F rotary attachment. 1968 1969-1979 1979
72H #5 Bore Eb Bass with Double Slide 1921 or 1922 - 1929
72H #5 Bore Bb Artist Bass with rotary valve to F 1955 - 1968
72H #5 Bore Bb Connstellation Bass with rotary valve to F - 1964 -
73H #5 Bore Artist Symphony Bass with F-D dual rotary attachments. 1968 1968-1979 1979
74H #5 Bore BBb Contrabass Trombone with Double Slide 1921 or 22 - 1929
76H #4½ Bore Beitel Model Large Symphony 1921 or 22 - 1926
76H #3¾ - #4½ Bore Symphony 1926 - 1930
77H #3 Bore Connquest 1957 1957-1979 1979
78H #3½ Bore Medium Bore Symphony with tuning slide in bell with 8", 8½" or 8¾" Bell 1921 or 22 - 1928
78H #3¾ Bore New Symphony with tuning slide in slide. 7½" bell. Possibly rose or red brass bell 1932 -1950 1950
78H #3¾ Bore Artist Symphony 1953 (Reinstated 1959) - 1953 (Reinstated to 1970)
79H #3¾ Bore Symphony with F& Eb Rotary attachment 1964 -1971 -
80H # Bore Medium Symphony with Rotary Valve to F and Tuning slide in slide - 8", 8½" or 8¾" Bell. 1921 or 22 1924-1927 1929
82H #3¾ Bore New York Symphony with Tuning slide in slide - no valve - 8", 8½" or 8¾" Bell. 1924 - 1927
84H #4½ - #5 Bore California Symphony (70H with an additional Rotary valve to E-Natural) 1925 - 1927
88H #5 Bore "G" Bass 1925 - 1929
88H #4½ Bore Artist Symphony with F rotary attachment with red brass bell 1954 -1979 1979
89H #4½ Bore Artist with convertible F rotary attachment and red brass bell - 1970's -