Window lock

Hi,
We have this lock on one of our windows
and we are hoping to install them in our other windows. Do you sell the entire lock(also the part that fits inside the edge of the window frame), or do you just sell the replacement part of the lock? Our lock says Marshall Irvine Calif.. Measurements from center of
holes are 2 1/4" and from edge to center of whole 5/8

Thank you