It and the Stone together. My books are 200 miles from here, but I believe there was discussion of its completion when Rand went to Rhuidean (perhaps they just discussed its disposition, but I can't recall for certain now; been too long. )

Despite Be'lals statements to Rand in TDR, I can't believe swords were used long during the War of the Power. We hear a lot more about shocklances and things like that, and the only time I remember swords discussed as weapons is TDR. Most likely even if Callandor existed before Dragonmount LTT never used it as a weapon, but a Power wrought sword of some kind. If he used a sword he probably didn't use it long before moving on to a more effective weapon even for non-channeling purposes. Very few even among the skilled prefer a blade to a bullet when lives rather than merely art are at stake. If LTT bore a sword long in the war it was almost certainly in the ceremonial capacity they're still worn today.