Mike, I thought there were examples we saw at both Harrach and PMC of the harrach oroplastic. You should look over your photographs. I hadn't heard of it before the trip but I was pretty sure we saw a ton of examples on the trip. I think I also remember seeing some examples in the haida exhibit at pmc but I didn't get good photos of that area. I got to that area of the museum after dark and the light kept going out on me and there was that creepy area with the pit and I've read WAY too many horror and murder mystery stories to not get a little freaked even though it's totally irrational, so that area didn't get properly photographed. LOL.
Pg 366 of the harrach book has examples of various patterns used. Rudolf schwedler was the designer