many thanks for this info hometownhifi, i haven't actually seen a picture of PTR myself . i wonder if the razor blade was for cutting up lines?? (credit cards were probably not so common back then?
Yes forgot about the Jah Lloyd LP which i've recently seen on ebay on the State Line label.
I was having some trouble matching up the different 12" sides so your info is very welcome.
I have updated my master copy & will continue to do so with any further information.
Thanks also for the kind words people.