Since the Conn Loyalist does not cover information on Conn musical instruments. Horns only, as this Century trumpet has an S19746 serial putting it at 1982.

> > Conn Brass Serial Numbers (rev.1) Conn Brass Serial Numbers (rev.1) This page contains a list of Conn serial numbers for brass instruments. That includes cornets, trumpets, horns, trombones, euphoniums and basses. This list is not correct for Conn saxophones (see Conn Woodwind Serial Numbers) or Conn bugles (see Pan American Brass Serial Numbers). Revision 1 The widely available contains inaccuracies in serial numbers earlier than approximately 1920. This revised serial number list is the result of research comparing serial numbers with patent number dates, known historical events and dates on Conn Guarantee Bonds issued with new instruments. This list undoubtedly still contains errors.

If you own a Conn Guarantee Bond I would appreciate it if you could scan it and e-mail it to me. I am interested in comparing the exact serial number and date. A few remarks Some instruments, mostly from the 1920's, have either a star ('*') or the letter 'B' stamped near the serial number. Current thinking is that these marks indicate a non-standard alloy, probably only of the bell. The suspicion is that a star indicates a gold brass bell (higher copper content), while a 'B' indicates a 'French brass' bell. None of this is confirmed at the moment (July 2009). Serial numbers with a 'V' engraved after the serial number are factory seconds.

Conn Brass Serial Number List Serial Number Year Manufactured 1 1876 191 1877 380 1878 680 1879 980 1880 1280 1881 1580 1882 2000 1883 3500 1884 6500 1885 9500 1886 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 2 2 2 2 2 2 2 2 2 2 2 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 4 4 5 5 6 7 7 8 8 9 C C E H K L M N P R GA3 GA4 GA5 GA6 GA7 GA8 GA9 HA0 HA1 HA HA HA HA HA HA76618, 37 0 38 0 39 0 40 0 41 0 42 0 43 0 44 0 45 0 - - - - - - - - 5 0 - - - - - - - - - - - - - - - - - - - -.

Wrong on all counts. Conn started using letter prefixes on serial numbers in 1963. Those serials started with a 'C'. I have a 10M with a serial number starting with the letter 'L', made in 1968 in Elkhart, Indiana. The 10M production stayed in Elkhart until the end. It was not moved to Nogales Arizona or Nogales Mexico. The student horns were made there beginning in the 1970's or so.

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The 'M' prefix was used on earlier saxophones, too. See some commonly referenced serial number charts. Don't believe all serial number lists. They have mistakes.

Also, Conn did some unusual things at times. The comment on production move date to Mexico is wrong in this next one. There were 2 sets of Conn models that had M prefacing the serial number, and this often a source of confusion. Conn started putting 'M' before the serial numbers during the New Wonder II (Chu Berry) line in the 20s.

Not all NWIIs have an M in front of the serial number. As Bruce stated, the 'M' stands for saxophone.

BTW, officially, even NWIIs were listed as '6M' in Conn's catalogs, even though the 6M stamp didn't appear until after the Conn transitional period. The Ms you have to be careful of are the ones in the 60s.Conn ran out of serial numbers and started putting letters in front of them in the late 50s or early 60s.starting with 'C'. I'm not certain of this, but I believe that an 'M'-prefaced serial number from this vintage will only have 5 digits. 'M'-prefaced horns from the 20s-30s have 6 digits after the M. You'll see a NWII or 6M on eBay occasionally listed as a late 60s horn because someone consulted the serial number chart and misinterpreted it. As Bruce says, it's best to have a pic of the horn.

Go to saxpics.com and check pics of various Conns so you know your forms, or you may end up paying 6M prices for a Mexiconn. 'My Conn Bari Sax has a n at the beginning of the serial number so this [the earlier post that N = clarinet] must be wrong.'

Post by keltonshields here is a list from a google search on vintage saxophone serial numbers according to this, the horn could be an 'M' [that is, a saxophone] and have a serial number 'N 12345' [which would mean it was built in 1970. Assuming that the site has the correct info. 1963 C00S0l 1964 C E H K L 'M'-Pretix[sic] 1970 'N'-Prefix 1971 'P'-Prefix 1972 'R'-Prefix.