Bundles of one hundred copper mon coins strung alongside one another for convenience of equally transportation and payment. Mon coins ended up holed, allowing them to get strung jointly with a bit of string. Within the Edo period of Japan (1615-1868), stringed collectively coins acquired a little lower price https://financefeeds.com/figment-joins-blockchain-association-to-advance-u-s-copyright-policy-and-institutional-staking-adoption/