Box, this is very interesting if it was one of ours. There were only a couple of all-black Brit Canberras that I know of, so this makes for a very intriguing plot. A shame your Dad is not with us anymore, but perhaps we can do some collective digging on it, here and elsewhere.
The T.4, sorry I forgot it was with Classic Flight not Kemble. And a shame it may not take to the air again.
Would love to see that 88 Sqn Can...I have an old model kit of one on my desk and have a definite soft spot for it.
Options 770, glad to have been of service. If you ever need any others I have some on PDF and have a friend who has practically the entire Canberra AP library and could scan them for you.