This 8-inch diameter astrolabe is the one featured in Tom Wujec's video
. If you haven't watched the video yet you might like to do so as it shows its size and quality far better than a single image can do.
This really is a beautiful reproduction of an ancient instrument, the first personal computer. Geoffrey Chaucer wrote the first technical manual in the english language in 1391 describing how to use it. You can follow in his famous footsteps as you learn to use this fully working model which carries the date 1602 on the reverse side.
It looks impressive on display and is sure to excite interest. Besides their use for determining astronomical events astrolabes were used as teaching tools in the late Middle Ages.
Alovely present for anyone who appreciates the skill of our ancesters and who likes to find out how things work.
Solid metal with antique brass finish. Height 250mm, diameter 200mm, thickness 12mm.