In 1910, however, a proper act to deal with currency was issued, Imperial sanction having been given to it in May 24 of the same year. Under this act the unit was to be the dollar and the coinage was to be in silver, nickel and copper. The silver coins were $1, 50 cents, 25 cents and 10 cents, besides one nickel coin of 5 cents and copper coins of 2 cents, 1 cent, 5 mill and 1 mill. The dollar was to be the standard and all the rest subsidiary coins - $1 will be equal to 10 dimes; 1 dime 10 cents, 1 cent 10 mills - although it was not then proposed to coin 1-cent copper pieces in order that they might not be confounded with the 10-cash pieces already in circulation. The dollar was to weigh 72 by 100 of the Kup'ing tael, 900 fine - amounting in value to 648/1000 of one tael silver; the 50-cent piece was to weigh 36/100 of a Kup'ing tael, 800 fine, amounting in value to 288/1000 of one tael silver; the 25-cent piece was to weigh 18/100, 800 fine, amounting in value to 144/1,000 of one tael silver; the 10-cent piece was to weigh 864/10,000 of the Kup'ing tael, 650 fine, and amounting in value to 5,616/100,000 of one tael silver. In the above, the Kup'ing tael was reckoned as 37.301 grammes of silver, while the silver referred to as the tael was pure silver. The edict proposed that subsidiary coins may not be offered in excess of $5 worth in any single payment; the nickel and the copper coins may not be offered in excess of half a dollar's worth in any single payment. The limit of the amount of coinage of the subsidiary coins was to be fixed by the Board of Finance, and the Ta Ching Bank was to have sole control of all matters connected with exchange of coins, old and new. The Government and the Ta Ching Bank were to take steps to withdraw all the old coins at the market rate to be reminted into new coins, and the Board of Finance was to fix a time limit for exchange; after this period the mint and the Ta Ching Bank would only exchange the old coins as silver bullion. In order to unify currency, all accounts and public documents would first use the new monetary denominations. Within the period of a year all official receipts and disbursements regularly made in copper cash or silver was to be reckoned in Treasury taels and thence converted into national dollars - the same rule to apply where silver or other coins had hitherto been used. This regulation was to apply to all Customs, postal, telegraph, steamer and railway accounts. Private debts should also be finally reckoned in the national coinage. From the date when the regulation received the Imperial sanction all mintage of large and small silver and copper coins of the provinces should cease.