Masṭara Ruling Boards
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Stone Seal
This square Hebrew stamp measures about one inch (2.54 cm) in height and slightly more than that in width. The back of this seal has a handle, so the bottom can be stamped on letters and other…
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…
Bracteate Coin
This silver bracteate coin (a coin struck on only one side) was produced by Jewish craftsmen, likely during the reign of Mieszko III (d. 1202), ruler of Poland. Starting in 1173, Mieszko employed…
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…