Beaugnier:

If you decided to play around with the serial numbers on http://www.doctorsax.biz/beaugnier_ser_nos.htm, note that he doesn't differentiate between the Leblanc System (two/three versions), Rationale (whichever spelling you wish) and Semi Rationale (two versions).

Boosey and Hawkes:

1. Boosey and Hawkes is a combination of the Boosey company and the Hawkes company. Hawkes produced their own instruments, for a time, and combined with Boosey in the 1930s. Boosey and Hawkes have been, since that time, sheet music producers and importers.

2. A lot of the saxophones stamped 'Boosey and Hawkes' are stencil instruments. To read more about stencils, please read my article HERE.

Keefer:

The vast majority of saxophones stamped 'Keefer' are stencils.

Buescher:

Horns stamped 'The Buescher Band Instrument Company' from the 1920's are stencils, as are the modern BU-series of horns available from Selmer, and follow different serial number charts.

Buffet-Crampon:

1. A small, but significant, percentage of all Buffet and/or Evette-Schaeffer woodwinds in the 1900-1930 range (or so) were Conn stencils and do not have Buffet serial numbers. In the 1990's, Keilwerth stenciled a saxophone for Buffet called the 'Expression' and that model has a Keilwerth serial number.

2. The modern Buffet 400 (and similar) are Asian-made and do not follow these serial number charts.

Bundy:

1. The Bundy in question here is from approximately 1950 to date. Earlier horns were a mixture of Conn and Buescher stencils.

2. For a brief time, Bundy and Bundy Special saxophones were available from Keilwerth and Dörfler & Jörka, are stamped 'Made in Germany' and do not have a Bundy serial number.

Julius Keilwerth:

Except for the ST-90 I and EX-90 I and II, the ST-90 and EX-90 were not made by Keilwerth and probably do not have Keilwerth serial numbers. For a chart of those models, see THIS.

Kohlert:

The modern Kohlert instruments are made in China or Taiwan. Their serial number format is completely different. The serial numbers listed here are for the German/Czech made instruments.

LeBlanc:

Leblanc does not give out serial number charts. If you ask them, EXCESSIVELY NICELY, about a serial number off a horn you own, they might tell you when it was made.

SML:

1. The SML A400/T400 are Asian-made stencils not made under the authority of SML and are not included in this chart.

2. Some very early SML saxophones were stencils. There are also occasional late-model stencils. For further info, click HERE.

Vito:

Vito saxophones have been made by Vito (Wisconsin), Beaugnier, Leblanc, Yamaha, Jupiter and Yanagisawa. Keep this in mind when attempting to date your instrument.

Yamaha:

These serial numbers are probably only for the Vito labeled YAS-21/23/25 stencils. However, these serials might apply to all Yamsaha instruments.

The standard info on Yamaha serial numbers is that they are not sequential and you need to contact Yamaha directly for information.