1450 MI Window Lock
Thank you for reaching out to us! We're happy to look into this, but we'll need more information. Can you write out the distance between the two installation holes, measured from center to center (red line)? We'd also like you to write out the backset (yellow line).

Red line is 2 1/4
Yellow line is 1 3/4
Thank you! We have the 90-180 and 90-274, which measure 2-1/4" on the installation hole centers. However, the backset differs for each and doesn't match what you've reported. We can't promise our locks will work for you if that measurement differs. It couldn't hurt to double-check, just to be safe.
No problem! I'm happy I could help. Our return policy can be found here, just in case.