For Andersen Perma-Shield Gliding Doors 1999 - Present. 
Newbury Outside keylock with housing
Schlage keyway, 2 keys 
Solid Forged Brass
Left Hand

Gliding patio door lock assembly with keys.
Bright brass patio door hardware features a ten-year limited warranty on the finish to provide years of enjoyment.

Works With the Following Andersen Doors:
200 Series Narroline Gliding
200 Series Perma-Shield Gliding
400 Series Frenchwood Gliding

NOTE:
Door handing is determined by which door slides as viewed from OUTSIDE.

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2573080 - Andersen Window Newbury lock assembly with keys for Right Hand - Bright Brass
2573081 - Andersen Window Newbury lock assembly with keys for Right Hand - Antique Brass
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2573083​​​​​​​ - Andersen Window Newbury lock assembly with keys for Right Hand - Satin Nickel
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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