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Combination portable sundial and instrument for calibrating sundials 17th century,from France,brass,silver - or so described. The concept of "calibrating sundials" puzzles me. This is a portable sundial with three scales to work at 40, 45 and 50 degrees latitude North respectively. There is a compass for orientation and screws for levelling. The gnomon adjusts accordingly as seen in the additional pictures.
Sundial. Family Coat of Arms Paul Steiner. Train. Calendar, Sun as a hub. Inside the actual sundial compass. Nicholas Wickart. Brass, silver plated. Dated 1567. Actually 2 sundials in one - a vertical and horizontal. Portable with direction derived from the compass. I wonder how they kept it levelled, though.