Coins minted in the Year 1758

What happended in 1758?
Monarch is King George II. Prime Minister is Thomas Pelham-Holles, 1st Duke of Newcastle (Whig). The Seven Years' War continues, many battles during the year. American inventor J. Rechendorf obtains a patent for a one-piece pencil with eraser.
Obv Rev Cat Coin
  Shillings 1758 Shilling - George II
  Sixpences 1758 Sixpence - George II