A rare 17th-century brass astrolabe from the Mughal world has sold for more than £2m at Sotheby's in London, setting a record for Islamic astronomical instruments and demonstrating the robust international market for historical scientific artifacts and objects of royal provenance.
The instrument, crafted about four centuries ago in Lahore during the early 17th century, is nearly 30 centimeters in diameter, stands about 46 centimeters tall, and weighs 8.2 kilograms—almost four times the size of a typical astrolabe from 17th-century India. The sale surpassed the previous record held by an Ottoman astrolabe made for Sultan Bayezid II, which sold 12 years ago for just under £1m, demonstrating significant appreciation in the market for such objects.
Benedict Carter, head of the department of Islamic and Indian Art at Sotheby's, described the piece as "perhaps the largest in existence" and noted it had never been publicly exhibited before the auction. The object's extraordinary condition and documented royal provenance—it was part of the collection of Maharaja Sawai Man Singh II of Jaipur and later passed to his wife Maharani Gayatri Devi—were primary factors attracting institutional and private collectors to the sale.
Craftsmanship and Technical Achievement
The astrolabe was created by two brothers, Qa'im Muhammad and Muhammad Muqim, who were part of the renowned "Lahore School," one of the most celebrated centers of astrolabe production in the Mughal world. The piece was commissioned by Aqa Afzal, a nobleman who administered Lahore and held senior posts under Mughal emperors Jahangir and Shah Jahan. Only two astrolabes are known to have been jointly made by the brothers; the other, significantly smaller, is housed in a museum in Iraq.
The instrument's technical specifications reflect extraordinary precision. It contains 94 cities inscribed with their respective longitudes and latitudes, along with 38 star pointers linked by intricate floral tracery. Five precision-calibrated plates feature degree divisions "so fine they are subdivided down to a third of a degree," according to Sotheby's documentation.
Dr. Federica Gigante of the Oxford Centre for History of Science, Medicine and Technology explained the astrolabe's functional sophistication: "They are essentially a two-dimensional projection of a three-dimensional universe. I compare them to modern-day smartphones because you can do so many things with them." She noted that astrolabes could calculate sunset and sunrise times, determine building heights and well depths, measure distances, and predict celestial movements. Combined with almanacs, they were historically used for horoscope casting.
Gigante emphasized the particular accuracy of this specimen: "It is not only big, beautiful and heavy, it is so incredibly accurate that it will give you the exact degree of altitude [of a celestial body]." She identified only one comparable instrument—one made for Abbas II of Persia—as matching this level of precision and craftsmanship.
Cross-Cultural Sophistication
The astrolabe demonstrates remarkable cross-cultural design elements. The star pointers carry their standard names in Persian alongside Sanskrit equivalents etched in the Devanagari script, reflecting the intellectual exchange characteristic of the Mughal court during this period. Carter noted that "this level of detail reflects the extraordinary craftsmanship of the Lahore School, which at the time was 'at its most refined.'" The convergence of technical precision, functionality, and artistic beauty distinguished it from earlier astrolabes produced in Middle Eastern centers, which often prioritized function over aesthetic refinement.
The object's massive size and ornate construction reflect the status of its patron. Aqa Afzal, originally from Isfahan in Iran, held positions of considerable authority within the Mughal administration, and the astrolabe's specifications and materials were commissioned accordingly.
Historical Context and Development
Astrolabes were first developed in ancient Greece about 2,000 years ago and spread to the Islamic world about 13 centuries ago. Over subsequent centuries, production centers flourished across Iraq, Iran, North Africa, and al-Andalus in present-day Spain. The craft itself was traditionally kept within single families and passed down through generations, making documented examples of collaborative work—such as this piece made by two brothers—particularly significant.
The Lahore School emerged as a leading hub of astrolabe-making in the Mughal world during the early 17th century, a period when the city had become renowned for such precision instruments. The broader context reflects the Mughal court's substantial interest in scientific advancement, particularly in astronomy and astrology, with rulers and courtiers demonstrating heightened engagement with contemporary scientific knowledge.
Market and Institutional Interest
Sotheby's had indicated before the auction that the piece's pristine condition, exceptional size, technical sophistication, and royal provenance would attract significant interest from museums and collectors worldwide. The final sale price reflects this assessment, with the instrument achieving record-setting valuation in its category. The object was exhibited at Sotheby's London galleries prior to the sale, generating international attention from institutions and private collectors.
The successful sale demonstrates that markets for historical scientific instruments, particularly those with documented royal ownership and extraordinary craftsmanship, remain robust and capable of supporting premium valuations based on rarity, condition, and provenance.
Why This Matters:
This sale illustrates several significant dimensions relevant to cultural property, market mechanisms, and institutional practice. From a market perspective, the record price demonstrates that private collectors and institutions continue to value historical scientific instruments, supporting a viable market for preservation and study of such objects outside government ownership or subsidy. The piece's journey from the Jaipur royal collection through private ownership to public auction reflects how market mechanisms facilitate access to significant artifacts by institutions and collectors worldwide, rather than restricting them to original institutional contexts. The astrolabe's technical sophistication—representing the computational and observational knowledge of 17th-century Mughal science—underscores the intellectual achievements of non-Western scientific traditions, a dimension important to accurate historical understanding. From a governance perspective, the sale raises questions about cultural property ownership, repatriation claims, and the role of market transactions in determining artifact location. The instrument's presence in a London auction house rather than a South Asian institution reflects current legal frameworks governing historical property sales, though such transactions occasionally generate debate regarding cultural heritage. The object's documentation and provenance demonstrate the value of transparent ownership records in supporting market confidence and institutional acquisition decisions.