Pennyweight Act of 1878; only the Troy ounce and its decimal subdivisions remained official. The Troy ounce enjoys a specific legal exemption from metrication in the UK. The pennyweight is the common weight used in the valuation and measurement of precious metals. Jewellers use the pennyweight in calculating the amount and cost of precious metals used in fabricating or casting jewellery. Similarly, dentists and dental labs still use the pennyweight as the measure of precious metals in dental crowns and inlays. Pennyweight and grains are still used to weigh gooseberries in competitions in Cheshire, northwest UK. Over the Pennines in Yorkshire
Trade during the Viking Age so there was no danger of them being rearranged or switched during the course of an exchange. Estimated exchange rates at the beginning of the 11th century in Iceland were: If the weight of a piece of jewelry was more than needed to complete a purchase, it was cut up into smaller bits until the correct weight needed for the transaction was reached. The term hack silver is used to describe these silver objects. Silver ingots were primarily used for large/high-value transactions. The largest found weights weigh more than 1 kilogram each. Precious metals were also used to display personal