Pentacone Pentowther info wanted.....

I managed to pickup a wonderful pair of Pentacone Pentowther speakers with Lowther PM6a drivers that needed a recone. After a week away with Lowther they came back sounding fantastic.
Now a year on and the drivers have finally settled from a crazy run in period I'm looking for information on these rare UK speakers.
After a search I found that Pentacone was briefly on this very site over 10 years ago.
Does anyone have any information on these speakers?
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