11In section 62(2) of the [1963 c. 25.] Finance Act 1963 (rate of duty in respect of a transfer of commonwealth government stock to be one-quarter of that which would otherwise be chargeable, or, if the amount or value of the consideration does not exceed £5, 3d.), for the words from " one-quarter " to the end substitute " Is. for every £20 or part of £20 of the consideration if the amount or value thereof does not exceed £300, and, in any other case, 5s. for every £100 or part of £100 of the consideration ".