Philron was a real DIY job, in that the labels were hand-made and were pasted on to blanks. It appears to have managed just the one release, 'It Shouldn't Have Happened' b/w 'I'll Give You Love' by Rendezvous. The songwriter was Phil Hills, so presumably he was the 'Phil' of 'Philron'; who the 'Ron' was remains a mystery. The record would seem to have been made through a company called ADR, which is equally mysterious - perhaps it was one of those firms which offered custom recording and tape-to-disc services. The catalogue / matrix number is ADR SP-0019, which suggests that there should be other ADRs out there, perhaps another eighteen of them; but it's likely that they were made in very small quantities. The year of issue was 1971. Thanks to Robert Lyons For The Info.
It Shouldn't Have