i removed this from a clients bay window. I looked everywhere and there were no stickers or numbers on either the window or crank. the unique part of this one is, it has a step down where the mounting screws go. two are higher and two are lower on the legs
Casey from SWISCO responded:
July 12, 2022
Hello,
Take a look and compare the specifications of the 39-096 Pella crank to the operator shown in your photos. Thanks for posting!