Sentence:  In March Messrs. Philip Morris & Co., Ltd., imported without a licence a consignment of 500 imitation cigarette cases, each containing a roll of <WSD>amorces</WSD> arranged in such a manner that an <WSD>amorce</WSD> was fired each time the case was opened, and the goods were placed under dentention by the Customs. 
Meaning of the word marked with <WSD> tags:  A percussion cap or detonator.