Hi Dan,
This book may not answer your question, but it may give you some ideas
on how to achieve patination on your gnomon.
Richard Hughes & Michael Rowe (1991) The colouring, bronzing and
patination of metals. Thames and Hudson, London. ISBN 0500015015.
The subtitle describes the contents: "A manual for fine metalworkers,
sculptors and designers. Cast bronze, cast brass, copper and
copper-plate, gilding metal, sheet yellow brass, silver and silver-plate."
Cheers, John
Dr John Pickard
On 01-May-2022 01:55, Dan-George Uza wrote:
Hi,
Iron rusts and brass changes color, but what about different metals
used as gnomons, pros & cons?
What would be the appropriate choice of material for a replica of an
18th century cubical multiple sundial? It should ideally come as an
industrial sheet ready for cutting and also not stain the limestone face.
I like the metal in the attached photo (Sundial Atlas CH 000247). Do
you know what it is?
Thanks,
Dan Uza
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