Buying woodwind instruments
There are some very fine vintage and older model instruments for sale from time to time but the seller usually knows the value of what they are selling and will always give an accurate description of the instrument/s for sale. Including the brand, register, (soprano, alto, tenor, baritone etc). The key of the instrument, whether it is high or low pitched (vintage woodwind instruments) and usually, the serial number, year of manufacture, country of manufacture and all manner of technical and performance history, features of the instrument that only a player would know.
If a seller of a “rare” or “vintage” or “valuable” instrument doesn’t have a detailed and comprehensive description for the instrument they are selling,(especially woodwind), be very wary. Even if they do, still seek the advice of a reputable player, or teacher before you buy it. This one act could save you a lot of money and regret. Most teachers and players are happy to take a moment to click on a link and give you some advice about an instrument that’s for sale. Especially if it’s being listed as “rare”, “vintage” or “valuable”.