Sorry, I've never seen anything like it before, other than it looks somewhat similar to some of George Sicliano's patterns. But his patterns are super-miniatures and have tiny pieces.
Can your friend give you more info about *where* she/he saw it? I see a watermark but it doesn't give me a direction to look in.
Last edited by Peckish; 12-30-2020 at 08:16 PM.