212 - 8. Re-issue to be preferred- to issue of currency notes. The re-issue of currency notes seleced in accordance with Regulations 16 and '17 shall be preferred to the issue of currency notes not previously issued. 9. (a) Minimum sum to be exchanged for currency notes or, sterling. The minimum sum which any person-shall be entitled under the provisions of section 7 of the Ordinance to lodge with the Board or vith the Crown Agents shall be twenty-five thousand dollars or the equivalent in sterling, as the case may be. (5b) Rate of Commission. The rate of commission chargeable by the Board for the issue or redemption,of currency notes under the provisions of section 7. of the Ordinance shall be published in the Government Gazette. 10. Books to be' kept. The Board shall cause books-to -be kept, to be called respectively- (a) the Vault Book; (b) the Currency Note Register; (c) the Register of Currency Note Issues; (d) the Control Account Register; (e) the Register of Cancelled and Destroyed Notes. 11. The Vault Book. The Vault Book shall be kept in each territory in the vault used for.the keeping of currency notes in accordance with Regulation 6, and shall include a record of the date of each transaction, showing the quantity in each denomination of currency notes deposited or withdrawn whether for issue, re-issue or cancellation, and destruction and the total nominal value of each deposit or withdrawal, and the serial numbers of currency notes .received, and issued for the first time. Every -entry shall be signed by each one of the three persons authorised to hold the keys or combinations of the vault under the said Regulation. - 12. Currency Note Register. When currency notes are supplied to the Board, or issued, withdrawn from circulation, re-issued cancelled or destroyed by the Board, an entry shall forthwith be made in the Currency Note Register which shall be kept at headquarters of the Bqard and signed by at least two Currency Officers showing the date and nature of each such transaction, the denominations and total number of the notes involved and the denominations and total number of all notes supplied to the' Board, issued, remaining unissued, withdrawn from circulation, re-issued, cancelled, kept for destruction in accordance with the provisions of paragraph (iii) of Regulation 19 or destroyed by'the Board up to and including the transaction which is then being recorded. 13. Register of Currency Not6 Issues. (i1 In the -Register of Currency Note Issues there shallbe recorded- S (a) in the case of notds of den-ominations in excess of ten dollars, the serial numbers in consecutive order-of the currency notes issued or.re-issued by the Board together with the dat'eof issue and the date on which each, note is withdrawn from circulation, and re-issued, cancelled or destroyed by the Board, and. the balance of currency notes in-circulation in each series; -