HENNING VIET BALTHASAR, 1750

Eeuwig Durenden Almanach. A rare perpetual wall calendar with two volvelles, produced for the Dutch market, displaying the month “Maende”, days of the week “tage”, date, Zodiac signs “Loop van de Sonne”, time of sunrise and sunset “De Opgaende Sonn ten ...Uren De Nedergaede Sonn te ... Uren”, length of day and night in hours “Langhte van den Dage ... Langte van de Nagt”, and important feast days for the month “De Heylig Daghen”, in accordance with the volvelle settings.
13.1/5 x 7³⁄₄in. (34.5 x 20cm.)

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