£8,000
By NAYLOR, Joseph, [c.1752].
£12,000
By LUCINI, Antonio Francesco, ?c.1665].
£25,000
By STAMPIOEN, Jan Jansz the Younger, [and] Marten CALMAM, [c1722].
£25,000
By VOOGHT, Claes Jansz. [after] Jan Jansz STAMPIOEN, [c1680-1696].
£1,275,000
By [Anonymous]., c1455]
Time Zones
The only known examples of instruments made for an unpublished quarto edition of ‘Dell’Arcano del Mare’
The Copernican solar system
Rare planisphere
A unique late Medieval/early Renaissance volvelle astronomical calendar
Telling the time with stars
A previously unrecorded state of a rare promotional broadside for an astronomical clock
Vooght’s rare star chart and astronomical calculator
A unique manuscript lunar astrolabe
An unrecorded analemma
The transit of Halley’s comet in 1758 

