Serial numbers can be found in a variety of places on different instruments. Please use the images below to help locate the serial number on your instrument.
![Willson euphonium 2900 Willson euphonium 2900](/uploads/1/1/8/9/118943515/873545335.jpg)
Willson Euphonium Serial Numbers
See here for the release date. For the serial number the typical format is to have the 4th, 5th, and 6th characters to reference when the product was built. The first character is the year date (Y) and the next two (WW), the week in that year it was made. Instrument serial numbers also given. Fig.4 - Distin and Company Workshop order book for 1873 showing valve serial numbers being allocated in chronological order by date of order from April 4 to April 17. Note that the serial numbers of the instruments which eventually incorporated the valves clusters are given in the second column. Instrument serial numbers also given. Fig.4 - Distin and Company Workshop order book for 1873 showing valve serial numbers being allocated in chronological order by date of order from April 4 to April 17. Note that the serial numbers of the instruments which eventually incorporated the valves clusters are given in the second column. Willson Euphonium Swiss Made Horn UNKNOWN MODEL SN: 11471 -DENTS & MISSING PARTS -UNTESTED -(FOR PARTS ). Serial #: 11471. The finish on this horn is worn, the keys are stiff but still move. Due to lack of musical talent, mouthpiece and the overall physical condition, this horn isUNTESTED.