Spline mounted plastic screen window latch pull.

Probably from Malta (the windows are Malta). The full width of the frame, all the way to the spline channel is 11/16th", the visible plastic corner bracket is 5/8th", the thickness is 3/8". The screen latch arm is 1/4" wide, and the overall length outside outside of the frame, from edge of the frame to the end is 2 1/2", and the distance from frame to the center of the catch tab that gets inserted into the jamb spring channel is 2". It is a dual fin tab that goes into the spring channel in the jamb. The latches are symmetrical. The white and black parts in the photos are the same except for color.