Pocket or pocket sundial. Its popularity reached its highest level during the 15th and 16th centuries. Numerous artisan workshops began to produce this type of sundials that, due to their size and price, were accessible to most of the public. Also their simple handling, far from instruments as sophisticated as the astrolabe, meant that even the least enlightened classes could use them.
It is made up of two boards, generally made of wood, joined by a hinge, in such a way that when opened one of them remains vertical and at a 90º angle with respect to the other.
It consisted of a compass and two quadrants that correspond to separate tables and that formed a horizontal and a vertical sundial respectively.
The compass was used to place the clock on the north-south meridian and once it was oriented, the shadow of the rope that joins the two tables provided a shadow on both quadrants that corresponds to the solar time at that moment.
This octagonal model is signed by Charles Bloud of Dieppe, one of the most renowned gnomonists of the time in France.
Inside is a horizontal clock and on the vertical cover we find a curious lunar clock, since the shadow cast by the moon on full moon days could also, through simple calculations, provide the time during the night.
On its cover we have an equinox type clock.
It is made by hand from fir wood and polished with natural waxes.
It comes in a beautiful case and is accompanied by a manual with its history and instructions for use.
We have two versions depending on their cover:
-Brass plate engraved with a beautiful equinox clock
-Print on paper with the same motif.
Measures:
Width: 7cm
Length: 9cm
thickness: 2cm
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