Kievan Rus. Svyatoslav Yaroslavich (Chernigov, 1054-1073). PB seal with Princely sign-"tamgha". Huletski/Doroshkevich #13. PB. g. 2.71 mm. 14.00 VF.
This is a monetary lead seal that was used for fur money in Kievan Rus' (11-12 th centuries). Thus, dukes could exploit their monetary regalia in the absence of silver coinage. Circulation of sealed fur bundles is witnessed by an Arabic traveller, Abu Hamid al-Gharnati, as well as some other authors, in the middle of the 12th century.