Scripts described in Conan of Cimmeria

Mark Dunder

From the text of Conan of Cimmeria:

'Thereon were inscribed, in the writhing ideographs of Khitai and the gracefully slanted characters of Hyrkania, the formal replies and felicitations of the Khitan king.'

At least so far I have descriptions from REH, on what some scripts looked like.

Can anyone find more?
Sorry, the quote is from the "The Curse of the Monolith." And I am in error, for it seems to have been written by DeCamp & Carter. Drat & double drat.

Got any sources on scripts for the Hyborian Age?