- Historians often study former monetary units as they provide insights into a country's economic history.

- Numismatists collect coins and banknotes of former monetary units as a hobby.

- Travelers might come across old coins of former monetary units while exploring ancient cities.

- The British pound sterling was the former monetary unit before it was replaced by the current pound.

- Many people avidly collect ancient Greek drachmas, a former monetary unit.

- During my summer vacation, I found a rare coin of a former monetary unit at an antique market.

To explore more about former monetary units, you can search for books, coins, or banknotes on Amazon.