He said "South West Trains is replacing the poster boards on the footbridge stairs, and in removing the old ones has uncovered some historic late '70s / early '80s ones underneath. They're very well preserved. One is a stylised advert for sleeper trains, but my favourite is the one instructing the good burghers of Richmond how to open train doors with a button!"
Love both of them, especially the reminder of the "We're getting there" slogan. Wonder how much longer - getting there takes?
Pleased that photos were taken before they were lost forever.