Tracing vintage equipment serial number #39nnn


In the case of an ad posted on a well-established website, how should I trace a particular audio component - well-established brand - using its serial number? I am speaking of a Thorens TD-124 and at this point I shall only reveal a partial number - I am obviously and cautiously vetting legitimacy. Perhaps an owner has the serial number marked on a left-over document and wonders whatever happened to it. 

Feel free to opine! 

128x128auralepicure

how should I trace a particular audio component - well-established brand - using its serial number?

Contact Thorens? 

Seems easy but

1) do they keep track of audio exchanges, and

2) what is a GOOD contact info? 

1) do they keep track of audio exchanges, and

Probably not unless it was re-registered with them.

2) what is a GOOD contact info?

Contact Us - Thorens USA

I’m not really sure what you are trying to do? See if it is stolen?