A few notes: I decided to try and find different titles for Current and Intermediary. Although they are quite functional, I didn't much care for them. Thus, the following tables will use the term Common for Current and Quondam for Intermediary. The latter actually means "that once was" in addition to being a cool potential name for a lost civilization.
One thing that I like very much about these tables is that they infer a back story for each item and for the treasure hoard that they are a part of. Rather than merely asking the utilitarian "how would the denizens of this dungeon use this?" these tables also suggest "why is an item from this particular era here?"
BTW, apologies for only providing .pngs of these tables. They are complicated enough that they are beyond my limited ability in .hmtl to provide any other way: