Precious Pieces premium parchment have watermark of our name.Please hold to light to verify noting Precious Pieces watermark.They are made of Japanese handcrafted parchment, washi, created in a highly respected process involving the skills of brilliant artisans. The artisans have been making washi for over 500 years and today they make washi using the same techniques Washi products at Precious Pieces are 100% natural and sustainable.