Not sure if this photo will upload, long time since I tried to do it.
It is of Wessex G-ASWI landing on the 23A platform, southern North sea in 1980. I was a regular passenger as I was then part of the Amoco management team during the compression platform installation.
Unfortunately WI was lost with all on board in 1981
(Appear to have failed miserably! Will try again later)