No idea what it is and happy to chalk it up as a generic but well made Taiwan frame
(Serial number stating "CA" on the NDS of the bottom bracket shell)
Ritchey dropouts (so must "be am RITCHEY!")
Double butted tubing
Top tuber cable routing
68 Mm bb shell
Ring re-enforced head tube
Nice details (bottle bosses and cast seatclamp)
Size is 18 center to top (15- 3/4 C-C) top tube is 22" center to center (and thus a tad to small for me)
Pretty good all round - some rust hither and thither and a bit of lacquer chip, there is a shallow dent on the downtube 4 - 5" down on the underside.
and i will confess t being gobsmacked at seeing it under 4lb (3.9something lb's)on my kitchen scales!
£65 posted in the uk
I'd be very interested in the seatpost reflector if you decide to split.