Nice early, low four-digit serial number, bare-bones, orange C90 at an unbeatable price. These are wonderful little spotters. Very compact and nice, sharp, color free images.
That is a low number, but a couple of things:
IIRC, Just the other day someone in another thread said that the certificates that came with the scopes were factory hype and really didn't reflect individual testing. Also, it looks like there is quite a few spots on the mirror. It's sold now so I hope it's nice and the buyer is happy with it.
I've never been particularly impressed with the C90 - it was not Celestrons best effort.