Need Aluminum Window Parts

Unfortunately, I can't find any information on these windows. There are no stickers or stamped in information on the window or frame that I can see. The part on the zoomed in photo has part of the U shaped bracket missing. The picture with the part with the screw at the bottom of the window is missing from the left side of the window. I need both of these pieces and new springs. I you need any more information, let me know. Thanks for your help.