§ 5. "That on and after the first day of July, nineteen hundred and twenty-five, there shall be charged—
- (a) on all artificial silk yarn, thread, straw, or waste manufactured in Great Britain or Northern Ireland an excise duty at the rate of two shillings and sixpence for every pound's weight; and
- (b) in respect of every licence to be taken out annually by a manufacturer of artificial silk yarn, thread, straw, or waste in Great Britain or Northern Ireland an excise duty of twenty shillings."