You’ve probably already seen the that fabulous picture of Thorin holding Thrain’s key — the one that they need to get into Erebor.
Now Herr-der-Ringe has a spy image of the artwork.
The keys is exactly the same, but the runes on them seem to be slightly different? Was the artwork an earlier iteration that was subsequently simplified? Maybe it’s the equivalent of text greeking? Any runes experts out there able to help? Potential spoiler warning