This indicates the last two digits of the year made. The seller said that it is from the 1950/60s, but was not too sure, and Couesnon's unfortunate history, I understand that it is incredibly difficult to trace a serial number back to a time of purchase. An important part of the engraving is the small number (in a circle, or 'pineapple') which often follows the words on the bell.

The Conn-O-Sax is a straight F-mezzo and very rare. Hey all, I recently acquired a Couesnon Monopole trumpet, and would like some more information about it. Keyed in F, the F-mezzo design is a unique hybrid between the Chu Berry and the Naked Lady with same side bell keys. These were the most eloborate Conn saxophones ever made with extravagant engraving and full pearl touches. This is likely the time when they also jumped ahead to serial numbers in the 100000 range. Wonder Improved & Wonder Perfected - Elkhart IND Besson company was purchased by a combination of Goeffrey Hawkes (of Boosey & Hawkes) and Couesnon SA. Wonder Improved - Elkhart IND & Worcester MASS *date/serial number relationships during WW II production and immediate post-production are based on our data collected from original sales receipts found in cases. Non-sequential numbering and missing records. I was told limited info about serial numbers and that you just 'look them up and find your instrument' and assumed nothing more. * This complete Buescher serial number chart was derived from the data of Albert Mensinga plus our own data compiled from original sales receipts found in cases of specific instruments. Accurate Couesnon serial numbers are not available due to a factory fire. So E plus 5 numbers is either 1964 or 1965, depending on what the 5 numbers are. Antoine Joseph (Adolphe) Sax 10 Rue Neuve-Saint-Georges à ParisĪntoine Joseph (Adolphe) Sax 50 Rue Saint-Georges à ParisĪntoine Joseph (Adolphe) Sax 26 Rue de Rocroy à ParisĪntoine Joseph (Adolphe) Sax 39 Rue de Dunkerque à parisĪntoine Joseph (Adolphe) Sax 56 Rue Laffitte à ParisĪntoine Joseph (Adolphe) Sax 6 Rue Lallier à Paris

Couesnon trumpet serial numbers