[riffraff]

So you're saying it's a prop or a rulebook? (an old xkcd comic mentioned this).

I doubt it's a rulebook cause it's not a real language.

If it's a prop, it would be extremely expensive.

Just to get the parchment you'd have to slaughter a herd of ovines, then you'd have to process it, then you'd have to pay a skilled professional or more for months of work to draw and write.

So I think the profit motive is more likely, and given we know of a ton of scams like this from this period, it seems the most plausible.

But I'll be happy to be proven wrong if someone finds more info in the future.