Here is my rescued and battered Radio Caroline window sticker from 1973. It is faded, rusted, and suffered from snail damage!
I didn’t realise the stickers were different until now. That’s probably why I got two in my membership pack at the time. I kept this one in the sleeve of my Pink Floyd’s Dark Side of the Moon album complete with all the album stickers etc. I laminated both of them and the melted adhesive has darkened the original colour.
I used to receive invitations to events in the UK and Holland on a regular basis but needless to say I couldn’t afford to go as I went back to college in 1974 for a year.