Read from the World of Warcraft client build files.
Where Galactic Void-Scarred Banner Fits
Items Numbered Next to Galactic Void-Scarred Banner
Blizzard numbers items as they are created, so the named items next to ID 247785 (247776 to 247794) were usually added in the same batch as Galactic Void-Scarred Banner: the same quest line, zone, vendor or reward set.