74 CGY
Soddim,
Wasn't that also the time that the boss of 6 was a guest of King H of J, "somewhere in the Med.." and couldn't fly the odd few miles to take over the 641TAF in Cyprus, but had to fly back past it, then turn round in the UK and come back. Also, I think 54 were being re-plated as 111 when they dumped their navs and then flew Jags out of Colt.
I think the pig was slightly later, though I'm sure BEagle can give time, place and attendees.