Read from the World of Warcraft client build files.
Where Galactic Commander's Orb Fits
Items Numbered Next to Galactic Commander's Orb
Blizzard numbers items as they are created, so the named items next to ID 264345 (264340 to 264352) were usually added in the same batch as Galactic Commander's Orb: the same quest line, zone, vendor or reward set.
Unbound ManawyrmID 264348 · Miscellaneous · item level 30"Teaches you how to summon this mount. This mount changes depending on your Riding skill and location."