Posted on June 23, 2015June 23, 2015The Coolest Watermark Ever Detail of a sheet of Katie MacGregor’s handmade paper. My collection. Papermaker Katie MacGregor’s structure of cellulose watermark. (C6H10O5)n rules! ShareClick to email a link to a friend (Opens in new window)Click to share on Pinterest (Opens in new window)Click to share on Tumblr (Opens in new window)Click to share on Twitter (Opens in new window)Click to share on Facebook (Opens in new window)Like this:Like Loading...