Each of the papers with watermark are about 8" x 11 1/2" The 4 page papers "Old Papermaking in China and Japan"--7 3/4" x 11" and "Chinese Ceremonial Paper" --8" x 11" are ads for his forthcoming books and each paper (which is one folded sheet) is watermarked. The watermark is the one in the plate #63 in the book "By His Own Labor"