Is the word "Yu Chunshuang" valuable? My family has a pair of couplets for grandpa's birthday, which is as happy as flowing water in the East China Sea and lives longer than Nanshan.

Baidu shows that this person is a little famous and should be valuable, but it is hard to say how much it is worth. This pair of birthday couplets is timely, and the content is not well written. There is no money in the couplets, but the fame is more valuable. There is also the reputation of your grandfather, as well as the calligraphy level of couplets and the scale of materials used in couplets. Living people, because of the official positions in front and so on, have great changes in their values in the back.