Unsigned and undated, this single-plate astrolabe can only be dated approximately based on two indicators. The Zodiac scale and Julian calendar on the verso show that 0-degree Aries corresponds with approximately 13.8 March. This puts the possible date of construction between 1150 and 1250. The second indicator is the placement of stars on the projection on the recto. A close examination allowed us to measure the positions of the stars with a margin of error of ±1 degrees. This data was initially compared to computer assisted calculations for different dates from different centuries. The closest matches for the positions of the stars were from the 13^th-century data. 

Additionally, a second comparison was conducted between this astrolabe and two other universal astrolabes from the 13^th century: One from 1218/19 by Muammad ibn Fattū al-Khamāiʾrī – currently in the collection of the Bibliothèque nationale de France (inv. cote Ge A 408)- and another from 1270/71 made by Ibrāhīm al-Dimashqī – which is in the British Museum (inv. 1890,0315.3). The undated astrolabe has near-match star placements with both astrolabes, although not for all seventeen stars. Mismatching stars, however, indicate later dates in comparison to Khamāiʾrī astrolabe and earlier dates to Dimashqī astrolabe. This allows us to argue that the date of construction of this astrolabe might be between 1219 and 1270, perhaps around 1250s. 

The thirteenth century was a lively period for astrolabe making in the Islamic West, that is Maghrib and al-Andalus. Khamāiʾrī was arguably the most prominent of the instrument makers of his time. At least fourteen astrolabes by his hand survive, albeit most of them are planispheric astrolabes. Knowing that he signs his instruments, it would not be reasonable to assume this is one of his works. Furthermore, the rarity of surviving universal astrolabes from any period and very common features of the western kufic script which can be observed on most of astrolabes from the Islamic west prevent us to argue any possible name for its maker. It is clear that it was made in the closely followed tradition of astrolabe making in the Islamic West. Only peculiar feature is perhaps its alidade, which is almost like a triangular prism.