South African box info please

Hi all, i just got this box of 30-06 180gr PMP hunting ammunition. I have not been able to find any reference to this box style at all. Anyone maybe know what years they were invise and for how long?

Thanks,
Jonathan

Pretoria Metal Pressing Limited were using the PMP headstamp from as early as 1965. Perhaps this is one of their early boxes’

This is the PMP .30-06 box that I have. Different graphics.
I don’t know the date.
It has a handwritten price of R58 (about $4 or £3)
180gr SP

They cost about R320,00 per box now. Will see when they cost that price to get a date.

Thanks,

Jonathan