Andersen Right Hand Exterior Tribeca gliding door lock with keys for Frenchwood sliding door in stone.

Key Lock for products manufactured 1994 to present.
Key way: Schlage 6 Pin SC4, 2 keys.
Rekeyable: Yes, Schlage key
Handed: YES, Right-Handed - handing is determined by which door slides as viewed from outside.
Lock assembly is Right hand as viewed from exterior side of door.
Color: Stone
Service Years: Sliding door keyed lock works with products manufactured 1994 to present.

Sliding door keyed locks fit the 400 Series Frenchwood Gliding and 200 Series Narroline and Perma-Shield sliding doors. 
Right hand as viewed from the outside of the door (active panel determines handing).

Sliding door locks with keys priced and sold each.

Related Andersen Door Hardware & Parts:
2573069 - Lock Assembly w/screws - Tribeca / Exterior - Left - Stone
2573068 - Lock Assembly w/screws - Tribeca / Exterior - Left - White
2573078 - Lock Assembly w/screws - Tribeca / Exterior - Right - White

Article:
How to Change the Handing on an Andersen Exterior Keyed Lock
Article:
How to Replace a Sheared Tailpiece Receiver in a Lock on an Andersen Sliding Patio Door