<span>that the patterns of polarity matched up on both sides is the answer </span>
Portugal cuz it has never been in contact with British. South Wales and North Wales are definitely part of you need to give an example of another country say Southern Ireland cuz only the North is part.
ANSWER: commodity money
EXPLANATION: The commodity money is the hardest to travel with as it does not have any fixed value and has only the value of the commodity for which it is made. The commodity money exchanges commodities such as gold, silver, copper, salt, peppercorns, tea, large stones, decorated belts, shells, alcohol, cigarettes, cannabis, silk, candy, nails, cocoa beans, cowries and barley.