United States:
- Paper currency: Federal Reserve Notes were in circulation, including denominations such as $1, $5, $10, $20, $50, $100, $500, and $1,000 bills.
- Coins: Coins used included the penny (1 cent), nickel (5 cents), dime (10 cents), quarter (25 cents), half dollar (50 cents), and silver dollar ($1).
United Kingdom:
- Paper currency: Pound sterling notes were used, with denominations such as £1, £5, £10, £20, and £50.
- Coins: Coins in circulation included the penny (1d), threepence (3d), sixpence (6d), shilling (1s), two shillings (2s), half crown (2s 6d), and crown (5s).
France:
- Paper currency: French franc notes were issued, including denominations such as 50 francs, 100 francs, 500 francs, and 1,000 francs.
- Coins: Coins included the centime (1c), 2 centimes (2c), 5 centimes (5c), 10 centimes (10c), 20 centimes (20c), 50 centimes (50c), 1 franc (1F), and 2 francs (2F).
Germany:
- Paper currency: Reichsmark notes were used, with denominations such as 2 Reichsmark, 5 Reichsmark, 10 Reichsmark, 20 Reichsmark, 50 Reichsmark, 100 Reichsmark, and 500 Reichsmark.
- Coins: Coins in circulation included the pfennig (1 Pf), 2 pfennigs (2 Pf), 5 pfennigs (5 Pf), 10 pfennigs (10 Pf), 50 pfennigs (50 Pf), 1 reichsmark (1 RM), and 2 reichsmarks (2 RM).
Other Countries:
These are just a few examples, and many other countries had their own currencies and monetary systems in the 1940s.