A rare gold coin minted by Charles I during the English Civil War could fetch as much as ￡50, 000 when it is sold at auction later this month. Known as a Triple Unite, the coin was the worth 60 shillings or three pounds and was only minted for three years while the king had set up court in Oxford during his war with Parliament. The large coin, which weighs almost 27g, dates from 1643 and features an image of Charles holding a sword and olive branch.On the other side it has in Latin the slogan “