need to put on a new lock lever on our casement window. the lock lever was lot

A home owner from Chicago says:
March 24, 2023
pictures of the other locks attached. need the same lever.
picture is of the lever we need and the other picture is the window we are missing the lock lever.
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Emily from SWISCO responded:
March 27, 2023

Hello there!

The parts shown here remind me of the 39-291 and 39-290 Andersen lock bezel and lock handle. I'm just not 100% sure this is what you have, however. Can you verify that this is an Andersen window? 
A home owner from Chicago says:
March 27, 2023

What is the best way for me to know what the window company is? I dont see Anderson on them.

If i order these parts is there directions on how to correctly get the lever on?

looking closer at the piece from another window. they look different. any other options this could be. maybe the windows we have aren't anderson?

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Emily from SWISCO responded:
March 28, 2023

Andersen windows usually have some type of etching on the glass but it's also possible you may not have Andersen brand windows. 

The 39-291 handle and 39-290 bezel are compatible with the Andersen locks under the Related Item(s) section on these parts' respective product pages. You would need to remove your existing lock to confirm if it's what you have. We also have the 38-208 and 38-209 escutcheon-type locks but I don't know if they're what you have without seeing the old lock in question removed from the window. 
Andersen Lock Bezel, 5-7/8"
Andersen Lock Bezel, 5-7/8"
39-290
$6.05
Andersen Lock Handle
Andersen Lock Handle
39-291
$5.97
Handle and Escutcheon, Truth Encore
Handle and Escutcheon, Truth Encore
38-208
$8.85
Handle and Escutcheon, Truth Mirage
Handle and Escutcheon, Truth Mirage
38-209
$13.90
Anatomy of a casement window
Anatomy of a casement window
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