Sundial
Saint Agnes Church
Photo n° 3 |
Engraving the elements
of a sundial on marble is surely the most durable solution in
order to resist to the inclemency of the weather and therefore
to time. In the past, the groove engraved in the marble was
punctured in various points and then filled with melted lead, to
give better visibility to the lines.
Today the lead has been
substituted by coloured resins which should grant longer
duration.
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