Dirty Lasso

 is an item found in Red Dead Revolver.

Description
"Longhorn Luke used this very lasso to hogtie the biggest buffalo ever recorded in the Southwest."

- Store description

As with all similar items, the is not used in the game beyond unlocking a journal page. The unlock target, Longhorn Luke, along with his brother, Holstein Hal, both use lassos during the mission "Range War".

Unlocks

 * Pages 158 - 159 of Sheriff Bartlett's Journal, covering Longhorn Luke.

Merchants
The can be purchased from the Shop interface at the start of the mission "Sunset Canyon". If not purchased, it is not available subsequently during the current game.