In ancient times, freed slaves often got a felt 'liberty cap' to show their status as free men. The felt cap on a pole became an important symbol of liberty throughout the world. You can find liberty caps on many coins, including US coins and several other countries. Paraguay used this figure with a kingly lion on its early centavo pieces.
All of these coins with the lion/cap pattern carry roughly the same value regardless of date or denomination, although coins dated 1900 are a tad more valuable than other dates. The value goes up sharply for coins in well preserved condition, as follows:
worn: $2 US dollars approximate catalog value
average circulated: $5
well preserved: $20
fully uncirculated: $50
20 centavos coins dated 1900 are less common when they are fully uncirculated, in which case they catalog for about $100.
Be sure to apply the concepts on our Terminology page to these inflated catalog values. Actual buy and sell values will be lower.