Topic summary
Paper currency
Extracted from the Wikipedia article Paper money.
Early Chinese paper money
Between 1265 and 1274, the late southern Song government introduced a gold- or silver-backed national paper currency standard, which changed the geographic restriction. The range of varying values for these notes was perhaps from one string of cash to one hundred at the most. Ever after 1107, the government printed money in no less than six ink colors and printed notes with intricate designs and sometimes even with mixture of a unique fiber in the paper to combat counterfeiting.