Over my travels, I've collected a fair bit of currency which I recently sorted from piles, tin cups, and plastic tubs into a binder, sorted by country. I also acquired a bag of coins that my father must have collected during WWII. It occurred to me I might be able to spend some of it soon. Can I assume that anything called a farthing, shilling, crown, or florin is now worthless? And anything with George VI's face on it? I'll not bother asking about half pennies, pennies, two pennies, three pennies, or new pence, because it doesn't matter if they're legal tender or not, they're still worthless.