> From: Tony Duell

    > Does anyonre know what the thickess is? 

0.7 mm. (That includes the paint layer.)

    > I also don't know how they are fixed to the plastic header panel ..
    > Maybe some kind of double-sided tape?

One of mine (ca. 1970) has a sheet of double-sided tape which covers the
entire thing. (The glue on it appears to have hardened/failed, and the whole
works feel out of the plastic panel.)

        Noel

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