A home owner from Tigard, OR says:
April 17, 2016
I believe this is a Starlight casement window from 2001. I can have my handyman take the lock out...
Dave from SWISCO responded:
April 19, 2016
We may have a good match for this, but you will need to remove the lock to confirm. One of the most important features is the fork that locks and unlocks the windows, which is currently obscured inside the frame. I believe it could be either the 38-091 or the 38-099. See if yours matches up to these.