Russian Overflights by RAF Crews during the "Cold War"

[carlrsymington]

My attempt to resurrect Russian civil airliners spying on Nato

There was an earlier request to ask for input on eastern bloc airlines covertly photographing NATO assets.
The Cessna on a Sunday morning made me smile.
I am interested because in the early 80's (16 year old) I heard rumours of the Tu-104 up to Tu 134 being used to photograph targets through the glazed nose. (obviously 104 being way back)

I am also aware of Brixmas (I might have met one of the participants, elder brother of a friend) so I wonder "Were the Eastern Bloc at this too?"