Something else from our visit to Edinburgh: at the National War Museum in Edinburgh Castle, this was on display. As you can see from the label, it's a gau, worn by Tibetan soldiers to give magical protection. Also as you can see from the label, it didn't work, there's a bullet hole in it and Major William Otley probably looted it from a body on the battlefield.
What struck me was, a few buildings away in the castle complex, carved into the door of the prisoners' infirmary, was this - which, if I'm not wrong, is a hexafoil or "daisy wheel" apotropaic mark (a "witchmark"). These were carved on entrances to buildings - window lintels, doorways, chimney breasts - to keep out evil spirits.
So maybe the Tibetan and Scottish soldiers weren't that different.
The gau is from the early 20th century, don't know when the hexafoil was carved into the door. There's what looks like a failed attempt to construct one further down.