

Caution: to thick of a valve oil can slow down the action of valve pistons. In that situation a thicker oil may be more suitable than Al Cass Fast to compensate for the gap. Some trumpets (used, second-hand or old from use) valve casings are not, or no longer tight fitting because of a gap that had developed between the valve pistons and the valve casing which causes the Al Cass oil to go dry pre-maturely (to soon) between each use while playing the trumpet. Valve oil is valve oil (all are generally the same). I was also wondering, if I sold it, what my asking price should be? If anyone has any ideas, I'd love to hear them. I've found a couple of sites that suggest it may be from the sixties but I was wondering if that was correct.

The serial number on the middle valve piece is 41 371211. I have a King trumpet (a Tempo 600 Series) that I got used.

Early instruments will have a 'lion head' by the serial numbers and are engraved 'The King'. Please keep in mind that most catalogs were dated on the back and should be trusted more than the serial number list. The remaining four numbers of the serial number indicate the production. The fourth character (number) indicates the specific type of instrument: '1' = Cornet, '2' = Trumpet, '3' = Alto Horn, '4' = French Horn, '5' = Mellophone, '6' = Valve Trombone, '7' = Slide Trombone, '8' = Baritone Horn & Euphonium, '9' = Tuba, and '10' = Sousaphone. King Tempo Stock #345612MW This Trumpet has been totally Reconditioned. King Tempo 600 Stock #345613MW Brass Trumpet. Answered by a verified Musical Instrument Appraiser. Also, the year of manufacture, if you can. Tempo 600 trumpet, serial number 173699 in fair condition.
