Looking at 1981 catalog pages on Kilgariff and VCC site and as in Aids catalog page previously shown by Shaun, I'd have to agree it looks pretty definitive his new acquisition fits description of Holdsworthy's professional racing range top of the line "Classic" time trial machine.
Features match: likely originally 5 speed (at least from what I can tell in Dave's Cycle Chat link of poor pic of FD setup), SL tubing and fork decals, "special" Prugnat cut out lugs, drilled rear vertical Campagnolo dropouts, same TT Braze ons, short wheel base, fork crown, fastback seatstays, etc.
Guess fact that there doesn't appear to be a a 79 or 80 catalog available does not rule out possibility of frame being from these years. Perhaps considering this info and Dave's prediction guide c.1980 is a good round date.
see: http://www.nkilgariff.com/HoldsCats/Cat ... alogue.htm
Features match: likely originally 5 speed (at least from what I can tell in Dave's Cycle Chat link of poor pic of FD setup), SL tubing and fork decals, "special" Prugnat cut out lugs, drilled rear vertical Campagnolo dropouts, same TT Braze ons, short wheel base, fork crown, fastback seatstays, etc.
Guess fact that there doesn't appear to be a a 79 or 80 catalog available does not rule out possibility of frame being from these years. Perhaps considering this info and Dave's prediction guide c.1980 is a good round date.
see: http://www.nkilgariff.com/HoldsCats/Cat ... alogue.htm