Assuming the frame/fork/headset haven’t gone through a threadless conversion, probably post 2002. Assuming the 9-speed Record rear derailleur is original (it isn’t) or at least vintage (maybe), then probably no newer than 2004.
But lack of chain means an immediate no. All of those components are pretty worn, so even assuming it shifts and stays in gear reasonably (unlikely, given the mashup of Shimano and Campy), a new chain will cause plenty of skipping issues, necessitating a new cassette and possibly new rings as well. Just those parts will set you back $150.