It's no surprise that proof set values are linked to the metal of the coins, but this super-valuable gold proof set is...well ...
a 1920 Indian Head Gold Coin in circulated condition is worth between $20,000 and $75,000. But that value rises to as much as $2 million for specimens in pristine, uncirculated condition.
The Lennon coins follow the exact same formula as the McCartney series. They range from the John Lennon 2025 UK £5 Brilliant Uncirculated Coin for £18.50 (approx.. $AUD37) up to the John Lennon 2025 ...