Identifying and then maybe valuing old Cannondale with downtube shifters
 

I am trying to figure more out about this Cannondale I bought probably 5 years ago. It had (when I bought it) Shimano 105 shifters, Shimano RX100 brakes, Matrix IsoC 700C Wheels with Michilin Pro3 Race Service Course tires. Modolo Flash handlebars on a Nitto stem and All-City pedals.

The guy who had it before me had it professionally powdercoated which looks really nice, but also I can't find a darn serial number anywhere...

http://i309.photobucket.com/albums/k..._21_20_Pro.jpg

http://i309.photobucket.com/albums/k..._21_49_Pro.jpg

http://i309.photobucket.com/albums/k..._21_36_Pro.jpg

Thoughts/feelings/opinions?

Thanks!
-Parker

Looks like 80's - early 90's. Serial number would help in identification. It's either on the bottom of the bottom bracket or the non-drive-side chainstay or seatstay as shown here:

Vintage Cannondale ? Serial Numbers & Information | VintageCannondale.com

'87 or '88 SR 500 model. Serial number should be on the top or bottom of the drive side chain stay, might be hard to see if the powder coating is thick. Flashlight helps.

I think the repaint took quite a bit of value away, as the imitation rock (granite?) finish will not be universally liked.....
It's an early Cannondale as it is pre-cantilevered rear dropout design........