Bundles of a hundred copper mon coins strung with each other for advantage of each transportation and payment. Mon coins were holed, making it possible for them to be strung with each other on the bit of string. From the Edo duration of Japan (1615-1868), stringed alongside one another https://financefeeds.com/best-meme-coins-to-buy-now-trending-meme-coins-with-10x-potential/