A staff of vision  contained the darkvision, remove blindness and see invisibility spells, and two copies of the true seeing spell. Each time one of these was used, there was a chance that the caster would become mentally fatigued. It was worth around 43,000 gold pieces.
- Ed Greenwood (September 1991). “Bazaar of the Bizarre: A wizard's staff is to lean on”. In Roger E. Moore ed. Dragon #173 (TSR, Inc.), pp. 30–34.