Silph Scope

This is an Key Item obtained in Leafgreen, Firered and in Red, Yellow, Blue.

Use
Your character uses it to see the ghosts in the Pokemon Tower in Lavender_Town. Without it, your character can not get to the top of the tower,

Obtained
It is gotten after betting Giovanni in the Rocket Hideout in the game shop, behind the poster. After battling him he drops it and leaves.