Bundles of 100 copper mon coins strung alongside one another for ease of the two transportation and payment. Mon coins were being holed, enabling them to get strung alongside one another on a piece of string. While in the Edo duration of Japan (1615-1868), stringed with each other coins https://financefeeds.com/dogecoin-price-prediction-doge-to-break-out-but-may-be-outshined-by-these-2-penny-cryptos/