Lot Essay
Sevin was a mathematical instrument maker who supplied some of the instruments for Richer's voyage to Cayenne and instruments for the extension of the meridian in 1683.
Details
PIERE SEVIN, Paris
A brass perpetual calendar for the period 1685-1705, the obverse with rotating volvelle for the moveable Feast and Saints' Days, sunrise and sunset, further engraved with months and dates, the outer rim divided 1-31-1-28/30, the reverse with twin revolving volvelles for the imoveable Feasts and Saint's Days, days of the month and phases of the moon, signed in the centre P. Sevin A Paris -- 3in.(7.5cm.)diam.
See colour plate
A brass perpetual calendar for the period 1685-1705, the obverse with rotating volvelle for the moveable Feast and Saints' Days, sunrise and sunset, further engraved with months and dates, the outer rim divided 1-31-1-28/30, the reverse with twin revolving volvelles for the imoveable Feasts and Saint's Days, days of the month and phases of the moon, signed in the centre P. Sevin A Paris -- 3in.(7.5cm.)diam.
See colour plate