money changing
両替 / money-changing — Institutions
Trading one sort of money for another.
Owl with Test Cuts5th–4th Century BC (Classical Period)
Portrait coin of Ptolemy ICirca 305–283 BC
Free Imperial City of Frankfurt, One Thaler, 17721772
⚠ As fees could be charged, this itself became a major business. When two standards of value exist within a country, money changing becomes a part of daily life.