After the discussion on transits, Bob Terwilliger referred to his web page, where there is the following note. Does anyone know what the optical elements of these dials are, or if they can be seen on-line?
Mr Pollähne also manufactures a line of unique Optical Sundials.
Erich Pollähne
MEKU GmbH
Am Weingarten 14
30974 Wennigsen
Germany
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Peter Abrahams [EMAIL PROTECTED]
