Thanks, Mike.
Do we know of any rough date when it wouldn't be found? Would that be into the 80's?
I'm sure the Mdina website site used to say they upped the quality around '86.
But they've changed their site and the history section several times.
To add to this discussion, I have just found a small Ming cylinder, not the normal size, with a polished pontil mark, so that puts Mdina Ming in the very early '70s too.
Ming and Earthtones are Michael Harris designs and can be found in early '70s pieces.