My Malta screens hinge at the top by fitting a notched corner piece over a peg on each side the just from the window frame. The corners you show here look like the ones that don't hinge at the bottom of the screen. Attached is a pic of what I have. The bottom of the screen simply attach via a Malta Screen Frame Latch.
Tom from SWISCO responded:
May 2, 2017
I'm not sure if our 95-229 will work for you. How well do our dimensions match up? That is likely the most important detail.
A quick learner from Hopewell Junction, NY says:
May 2, 2017
Hi Tom,
That is the correct size for top and bottom but the top ones need the notch (left and right handed) as pictured. Do you have those?
Tom from SWISCO responded:
May 4, 2017
Great, thanks for clarifying! Take a look at our 95-151 and 95-150, which are both Malta.