This astrolabe, with its elegantly designed rete and precise engraving has been lettered throughout in the Lombardic style. This helps to locate its origins, but the accompanying plates cover a wide range of latitudes from 41 to 53 degrees. One interesting feature of the rete is the way the central meridian bar is drawn aside into a semicircle to make way for the projected position of the star Vega.
The astrolabe is very similar to another in the Museum of the History of Science, Oxford: Epact 12610.
