77, and was found at Serrin (opposite Karat en-Najm) by von Oppenheim.
Mas`udi in the 10th century says it was known also as Karat at-Tin ("the Clay Castle").
In Northern India it is termed the karat, or Persian wheel.
Twenty-four karat gold is purer than 18 karat gold and more expensive.
karat gold with a solid gold case back.