Minted in smaller batches, these coins are rarer than standard coins and can be of particular interest to collectors either for their rarity or because of what they commemorate. The largest coin in the common denomination, the 50p is frequently used for commemorative occasions. How much is a 50p worth? A 50p coin is legal tender for half a pound, but depending on the coin, could sell to a collector for hundreds of pounds, possibly even more.