Is King Wen's money valuable?

According to the auction information of 20 19, the starting price of this item is 500 yuan. In the Qing Dynasty, the flower coins of "Wen Wang Bai Zi" were round, weighing 10.6 g, with a diameter of 4.8 and a thickness of 0.5 mm. The round line had four characters of Wen Wang Bai Zi, separated by flowers and leaves. Literally, they are painted with red, yellow and purple single-color enamel, with a small square mouth 5 mm wide in the middle and 3.5 mm on the outside. It means peace, wealth and good luck in all directions. There are no words on the back, but there are concentric lines and concentric square lines like the front. In the circular line, a pile of opposite pine needle patterns are carved by hand.