Coins minted in the Year 1930

What happended in 1930?
In UK: Monarch is King George V. Prime Minister is Ramsay MacDonald (Labour). British unemployment averages 18%. British airship R100 takes 78 hours to get to Canada, but airship R101 disastrously crashes in France. Arthur Ransome publishes Swallows and Amazons.
In USA: President is Herbert Hoover (R-California). In New York, The Chrysler Building is completed and the Empire State Building begins construction. Colonel Sanders opens the first Kentucky Fried Chicken in North Corbin, Kentucky. Clarence Birdseye sells the first ever frozen food in Springfield, Massachusetts.