Read from the World of Warcraft client build files.
Where Aspect's Shadowflame Crest Fits
Items Numbered Next to Aspect's Shadowflame Crest
Blizzard numbers items as they are created, so the named items next to ID 204194 (204188 to 204199) were usually added in the same batch as Aspect's Shadowflame Crest: the same quest line, zone, vendor or reward set.