The card grants 3 shields
The card gives 3 coins per Wonder stage constructed in its home city at the time it comes in to play (3, 6, 9 or 12 coins). At the end of the game, the card is worth 1 victory point per Wonder stage built in its home city (1, 2, 3 or 4 points).
The card gives 1 coin per brown card present in a player's city when it's played. At the end of the game the card is worth 1 victory point for each brown card present in the player's city.
The card gives 2 coins for each gray card present in the player's city when it comes into play. At the end of the game, the card is worth 2 victory points for each gray card present in the player's city.
The card gives 1 coin per yellow card in the player's city, itself included, when it's played. At the end of the game, the card is worth 1 victory point for each yellow card present in the player's city.
Clarification for the Arena, the Port, the Chamber of Commerce and the Lighthouse: the coins are taken only once, when the structure is built. The victory points are counted at the end of the game, according to the cards and Wonder phases built at that point.