Bracteate Coin
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Masṭara Ruling Boards
A ruling board, known in Arabic as a masṭara, was used by copyists to make lines on the pages with regular spacing, a feature of professionally produced manuscripts of this period. The boards were…
Seal of Tsemaḥ ben Asah ha-Nasi
This domed carnelian stone seal belonged to Tsemaḥ ben Asah ha-Nasi (“the Prince”). The title marked a claim to Davidic descent, and Tsemaḥ was a leader of the Karaite community in Fustāt (Old Cairo)…
Astrolabe with Hebrew Additions
This astrolabe, a tool used for astronomical measurements, was produced by a Muslim artisan named Muḥammad Ibn al-Ṣaffār in Toledo in 1029/30. Ibn al-Ṣaffār was a skilled artisan, and his scientific…
Seal of Solomon ben Isaac al-Mu‘amam
This seal, made of bronze and 2.7 cm (1.06 in) in diameter, is inscribed with Hebrew lettering: “Solomon bar Isaac al-Mu‘amam, may God be his friend.” It is thought to have been cast in southern Spain…
Jug
This jug, discovered in Cologne, Germany, could contain two different liquids that might be accessed in different ways. It has been conjectured that it could be a “trick pot,” used for ceremonial or…
Seal of Samson of Coucy
This seal belonged to Samson bar Samson of Coucy (born in the second half of the twelfth century), a French Tosafist and biblical exegete known as ha-sar (“the prince”) of Coucy. The bronze seal bears…