in data base, the photographers remarks are often used to give the previous history of the aircraft, which I think is nice. Construction number so and so, ex-reg this and that.. Fine.

When checking the new uploads today I saw some confusing stuff though. A line like N6543 N17385 ex:9N-BAX
(just an example Helge..)
Does this aircraft have two N regs??
Seems to me this N17385 number is actually the C/N or Construction number. Some uploaders call it S/N for some reason.
It should read C/N 17385 so that it is clear that it means construction number. This number follows the airframe through its entire life and helps us track it down. Registrations may change 50-60 times during the years but the c/n remains the same.
Am I making sense here?
/JM