It has 50 tiles measure 4 1/4 inches x 4 inches. It is framed and backed in a wooden frame. It measures 51 1/2 inches tall and 25 1/4 inches wide. There are two of them!
My friends family had it in their house for at least the last 50 years
You have a Chinese Tiles tableau made ca. 1980. Its party handpianted and, what I can see, also printed parts. Tiles are quite modern and appears to be pottery and not porcelain. I think the value is decorative but there are buyers for it. I believe a fair price in an auction would be around the estimate.