The bottom of a teacup made in Taiwan Province Province for burning wood and making lamps is "Fu". What is its origin?

If the inscription on the tea set was written by Mr. Heng Yue, a descendant of Gongwangfu, it belongs to the "Fufeng Tea Set" family. I have only seen his tea in a clubhouse, but I have never seen his tea set with my own eyes. I only know that Fufeng tea and utensils in the Imperial Capital are the favorite brands of players, which are "quite" in height, size and elegance! ?