There have been 3 versions of the 85029, all Phoenix.  1969,  mid seventies then late nineties, I think its around those dates.  The early one could be 100 quid mint, the second 50 and the third 20 ish, those are my guesses.  I do't recognise that first patent, the second in Pings and dates it,  can you post exactly what the first one says on the head?