If you could open the window and show us the arms of your operator that move the window sash, that will help us confirm which handle would be compatible. Thank you!
A home owner from Auburn, Maine says:
February 3, 2022
Casey from SWISCO responded:
February 3, 2022
Thank you for the additional photos. Your operator resembles the 39-393, which uses the 39-232 Roto handle. Take a look and see how the specifications of these parts compare to yours.