Money

There are various forms of currency used throughout the Nine Worlds. Even within the Empire of Astandalas, there was different currencies used on different worlds. Money was generally in the form of coins made from gold or other precious metals, often with the face of the Emperor on them.

"[Emperor Artorin's] face in profile was serene, benevolent, at repose; like the profile used on coins, the old Astandalan sunburst, the Zuni valiant, most of Alinor's, most of Voonra's, most of Colhélhé's."

Ysthar

 * Sunburst - Used before the Fall. Has the profile of the Emperor on it. A room for the night costs 4 sunburst. A good coat costs 5.
 * Modern Ystharian money

Solaara

 * Valiant - Has the profile of the Emperor on it. A box of new books cost 335 valiants. A long string of amber cowries of high quality would cost 1000 valiants. Cliopher's yearly income as Lord Chancellor is around 225,000 valiants. Cliopher's court costumes, household, and personal salary together would be around 700,000 valiants. A new telescope costs around 500,000 valiants.
 * Bills - Paper bills in amounts of valiants

Alinor

 * Bees
 * Wheatear - Worth multiple Bees
 * Golden Emperor - Worth multiple Wheatears. Presumably has the profile of the Emperor on it.