hi,

Thomas de Groot <tho### [at] degrootorg> wrote:
MichaelJF <fri### [at] t-onlinede> wrote:

> If I am correct, they are 10 to 15 cm diameter on the average
> (grapefruit-size); ...

> I could only find the following measures (archived German site):

thanking you both.  and yes, that German site on the Wayback machine answered
several of my questions (page "Funktion" in particular), curiously, the
manufacture ("Herstellung") page did not show.


cheers & regards, jr.

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