The uyra (plural: uyrim) acts as a base value currency for the entire Saigar Empire. It is paper money, and one uyrim can be traded in at an official exchange office for one kharam of silver.
1 Loaf of Bread - 4 Uyrim
1 Horse - 12,000-24,000 Uyrim
1 Small House - 8,000-16,000 Uyrim
1 Sword - 4,000 Uyrim