Serotta Colorado LT

Not sure of the year but it’s a steel SEROTTA COLORADO LT. Took my LOOK al464p off the street. This is my new daily. Picked it up locally for dirt cheap with the original set of wheels included. It’s a 52cm paint isn’t all that bad,mixture of components which will be replaced for a mini group. Still making adjustments to find a comfortable position. Any help identifying its age would be awesome. VIN- TC52-2440.