They were "pretty rare" with only the £1 seen previously but a group of about 20 sets came out about a year ago which sold for just over £250 (ish) for the lot although there were a couple of the old small crown roulette colour chips in there too.
The person selling this one (50p on EBay) buys Playboy stuff and then claims that they are an ex bunny (which they are) and that all of her stuff is from her private collection (which it is, but only after she's bought it on EBay so....strictly speaking). She made a tidy packet (and good luck to her) from a group of 56 Playboy UK tokens dated 1972. I knew the guy that sold them and am not sure who bought them so, care to share? If it was her, she'll get a good return and I must admit I would have loved a set but ...........Lovely chips!