Here is Eberhard’s explanation:

“ Unfortunately not from Diana, the company was always too sluggish for that.
At the IWA in Nuremberg,
An exciting dealer offered these cans and many other old labels for sale.
Retail price for 1000 cans a little over 2500,
when you order 10,000 cans, you can easily get over 11,000 euros
The cans were always the same as the diabolos.
You could also choose your own label.
MSG Eberhard”