I have 24 pieces of 18" x 18" ceilng tiles that my Father bought in Taiwan. We lived there from 1965-68. They appear to be hand painted but I am really not sure. Since my Father passed 3 years ago I have little info on them. They were found in the basement of his house. As mentioned they are 18" x 18" done on what appears to be 1/8" teak or mahogany plywood. The best thing to do if interested would be to come and take a look.