Window tilt latch

I bought this house a few years ago, so I have no documentation on where the windows were purchased. Google directed me to this part being a Swisco part. It's a window tilt latch for my front windows. The glass and frame have no serial numbers or identifying marks of any kind for reference. I've included photos of the right side installed, as well as this left one uninstalled by itself and under a tape measure for reference. From end to end the part is 2-7/8in long and the distance between mounting holes looks to be 2-1/8 inches. 
please help