From: "Richard F.L.R. Snashall" 
CC: ATM List 
Reply-To: "Richard F.L.R. Snashall" 




William A Franko wrote:
> Does anyone know of a process of applying a 50/50 coating to a prism?
>
> I tried Research Services in NH and they are no longer in phone contact
>
> or out of business.
>
You might try Evaporated Metals (Ithaca, NY??).  I seem to remember them
doing something quite close to this (Koester's prism) back in the 60's.

        Rick S.

>       thanks..................
>
>       Bill........
>
>
>
>

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