This triple horn weighs an astounding 5.6 pounds. The reason for this ultra light weight is that it is a compensating triple horn with a low F, Bb, and a High Bb descant. This is truly a specialty instrument. Owned and played professionally in the Boston Symphony. Very few of these were made. This one can be found on many recordings with the Boston Symphony. This instrument is in excellent condition and is made of unlacquered yellow brass. The serial number is 11834M, indicating it was manufactured in 1983.