AN ENGLISH PERPETUAL CALENDAR
AN ENGLISH PERPETUAL CALENDAR

THOMAS HOGBEN, CIRCA 1750

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AN ENGLISH PERPETUAL CALENDAR
Thomas Hogben, circa 1750
three brass discs, the uppermost pierced with viewing windows for length of day and night, times of sun rise and sun, signs of the zodiac, signed Tho Hogben Fecit.
2¾in. (7cm.) diameter

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