Okay so in the hall of Items Of Vague Historical Importance
So far we have
An old mothbitten tapestry, which is VERY difficult to make out, but I think it looks a bit like the Signless, wouldn’t you? Also, seeing as Equius seems to be intent on showing this to Karkat, who looks a great deal like the Signless, I’d say it’s a safe enough bet.
What appear to be fairy wings. Red, in this light, much like Aradia’s godtier wings. This arouses many questions
Redglare’s noose. Possibly the one she was hung on?
Her Imperial Condescension. Here could be an idea as to what that whole thing is about.
The Grand Highblood’s horns. Terezi you stop that, creepy sweaty paint-covered clown handprints CANNOT taste that good. Also, how long have those things even been sitting there?
Dualscar’s horns. Or another troll’s, whose horns just so happen to do the zigzag things. They’re totally Dualscar’s
Now see this one is very difficult to see, but it looks to be the paw of a giant cat, or, as the teal tint might indicate, perhaps a dragon! Either way, there are claws and padded feet bottoms, so while my initial idea is that it’s a cat paw, that’d be a p big cat, and I suppose like all things it’s open to interpretation.