Truth casement hardware
The existing window from the interior has the hinge/pivot on the right and the latch/lock on the left.
The "cranking" mechanism is stripped and the window does not function.
Thanks for reaching out! This window operator is a match for the 39-187 Sash Dyad Crank. The link arm is connected to the sash using the 39-513 Stud Bracket. The opposite handed versions of these parts can be found tagged below.
Both operators are compatible with the 39-114L and 39-205 (folding) crank handles.
The hinge can be replaced with either the 36-022 or the 36-022 HD four bar hinges. To determine which of these is the correct replacement, you'll also need to measure the width of the track.
You will need to use the same hinge to replace both the top and bottom hinges to ensure they are a match.
The specifications for these parts can be found on the website.