I last drank champagne from the trophy (it is a punch bowl after all) when it had been presented to 29(F) circa 1996. Cracking lunch; presented by the AOC in the presence of Major Seed who was a member of the family. The lads congratulated the CO for introducing the AOC as guest of honour without actually mentioning his name - which of course just wasn't done in fighter circles at the time.
Gawd knows where it is now but surely 1 Gp should still present it every couple of years or so?