My database is EVER growing and it is starting to shead light on when models were produced and when production ceases. Yamaha maintains a messy serial number system whose coding often occurs Sources: Allied Supply Music Trader Conn Loyalist Search for the serial number of the brand Cleveland / King to determine the age of your instrument. Yamaha Trombone Serial Numbers. On electric guitars, the serial number is generally stamped or punched on the headstock. Horns built after 1988 start with 100,001. Price: $8,699.00 RRP. In the land of serial numbers, Yamaha does not own property. If your grand piano is a GH1G, GH1FP, GC1G, or GC1FP, your piano was manufactured in Thomaston, Georgia. If you want to know the production year of your Yamaha guitar,you can decipher it with the serial number decoder, or find it in explanation about the dating system below. The 1.10 series If the serial number begins with a "U", the piano was manufactured in South Haven, Michigan. YSL-620/640. The case is include. Pinky ring changed to hook, bracing changed. In the 1966-1985 period, successive serial numbers from 001 to 1042 were used. Largest range of Yamaha products in UK. Bass Trombones. If you have a contact inside the company you can get this information, but it can be a royal pain sometimes. Rumor suggests that only 23 were made with serial numbers from 201001-201023. Used Yamaha Trombone Model YSL 345 with serial number 968819A. Where to find the serial number On Yamaha (and some other) piccolos, the numbers may be located on the metal receiver for the headjoint (circled), and may be covered when assembled. The slide must be straight-no exceptions! The best your going to do is to know that your horn was made pre-1988. The lacquer is in very good condition. The trombone: The instrument that extends and retracts, [Experiment] Let's make a straight trombone, Playing a tenorbass trombone or bass trombone. Knowing your trombone's serial number can help you identify the year your instrument was made. YAMAHA trombone YSL-640 Serial number: 400395 Gold lacquer painting with case. Regardless of your trombone's manufacturer, the serial number should be located on the piece of metal where the slide attaches to the rest of the instrument (Reference 2). Prior to the early/mid-'90's, Yamaha kept no serial number records AT ALL, and serial numbers were not necessarily assigned sequentially (so I was told by Kurt Witt, the Band Instrument Product Manager). From 1987 on, the two-digit prefix number plus 50 will give you the year of manufacture. The serial number coding systems below only apply to the Yamaha electric guitars. As a result, there are four different serial number ranges for Yamaha pianos. This is an approximate guide to deciphering the meaning of the numbers and letters used to create the model numbers used on Yamaha Trumpets. In 1939 the Mercury models had serial numbers in the 10,000's. What makes it even more difficult is that a large part of the serial numbers repeat themselves every decade. YAMAHA Trombone YSL-620 … H. N. White Co. -- King Serial Number