I have the list that John Baker and Denis Fastnedge compiled at the time and I have Sail number 15 called "Impression". The hull number will probably be similar - JB wasn't very good at keeping the numbers in step. No 1 was built in 1978 and No 96 in 1982 so I would put yours in 1979 or 1980.
It was sold to T Goulding, c/o D Mullaney, 2 New Street, Malahide, Co Dublin. They may have been agents. Subsequently it has been owned by A Talbot of Sutton, Dublin 13 (1980) Q Gargan of Kylemore, Dublin 10 (1989).
There doesn't seem to be any record of Charrdonay (or Chardonnay) or the numbar GBR 8894 connected with this boat.
Geoff Harwood Tech Librarian