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Scott’s double horizontal sundial
By SCOTT, Benjamin, 1713
A portable diptych sundial with compass
By BERINGER, David, [c.1750]
The Copernican solar system
By PIGEON D'OSANGI, Jean, 1713
A previously unreported and possibly unique surviving example of the Ferguson nocturnal
By FERGUSON, James, c.1770]
A possibly unique survival of a complete working paper instrument by John Seller
By SELLER, John, [c.1680].
An early nineteenth century perpetual calendar
By GAUTIE: IR PS, 1812].
Looking up
By [DES-ROIS, Ginot], as "Mlle. Ginot DesRoy", 1847.
A explanatory diagram of a three-dimensional cylindrical sundial
By WRIGHT, Thomas, 1737
A deluxe, illuminated and coloured example of a rare wall calendar
By [Anonymous], second half of 16th century].
A unique manuscript lunar astrolabe
By [Anonymous], [c1800]
The wheelwright of the heavens
By FERGUSON, James, [c.1750-60]
Time Zones
By [ANONYMOUS], [c.1680].