m21 19. Destruction of Cancelled notes. ci) After cancellation, currency notes shall be arranged as far as possible consecutively, according to their series in bundles of 100 notes and their numbers recorded in the register of Cancelled and Destroyed Notes in accordance with the provisions of Regulation 15. Tii) After the currency, notes have been classified, bundled and recorded, they Shall be handed to at least two Currency Officers, none of whom shall have acted previously in respect of the same notes under the foregoing provisions of- this Regulation. The currency notes after being checked by them shall as far as possible be' immediately destroyed in their presence by" fire in an incinerator provided for the purpose, and the Currency Officers shall immediately after the destruction sign a certificate in a form to be approved by the Board, showing the total number and value of the notes destroyed under each prefix letter of a series. (iii) If any currency notes are not destroyed by fire immediately after they are handed to and checked by the Currency Officers in accordance with the' previous provisions of this Regulation, the Currency Officers shall certify the Records in the Register of Cancelled and Destroyed Notes and seal and date the bundles of currency notes which shall forthwith be placed in the vault and there kept until it is convenient to destroy them. (iv) When the sealed bundles of cancelled currency notes are withdrawn from the vault, the notes shall be checked against the records in the Register of Cancelled and Destroyed Notes by at least two Currency Officers'who shall be the Currency Officers who had sealed tlq bundles if those Officers are available; the Notes shall then be destroyed in their presence in accordance with the provisions of paragraph (ii) hereof, and they shall sign a certificate in a form to be approved by the Board as provided in that paragraph. 20. (1) Board of Survey. There shall be a Board of Survey appointed by the Governor which shall consist of at least two persons, neither of whom shall be a member of the Board or a Currency Officer, whose duty it shall be to examine the stocks of notes held by the Board, whether uniissued, awaiting re-issue or awaiting destruction, as the case may be. (2) The Principal,Auditor, Windward Islands, shall be notified of every survey to be held and shall be entitled to be present, either in person or by his officers at any survey. S (3) Ordinary surveys shall be held at least quarterly, and surprise surveys shall be held by the Board of Survey when required to do so by the Governor. At least one surprise survey shall be held in every year. (4)' At any survey the Board of Survey may accept, without counting the contents thereof, if the seals are apparently intact- (i) any sealed package-that bears the seal of : (a) the Director of Audit, Trinidad, and at least one member of his .taff; or (b) the Crown-Agents for the Colonies; or (c) any recognized bank doing business in the Colony during any period in which such bank has agreed to receive back the package intact; or (d) not less than three Treasury Officers not being Currency Officers; or (e) in the case of bundles of cancelled currency notes, two Currency Officers; or . (