Monocle

The  is an item found in Red Dead Revolver.

Description
"This spectacle will help you understand how a freak like Professor Perry sees the world."

- Store description

As with all similar items, the is not used in the game beyond unlocking a showdown character and journal page.

Unlocks

 * Professor Perry as a multiplayer character in Showdown Mode.
 * Pages 102-103 of Sheriff Bartlett's Journal, covering Professor Perry.

Merchants
The can be purchased from the General Store in Brimstone after completion of the mission "Freak Show". If not purchased before starting the next mission, it will not be available during the next visit to Brimstone.