I need to replace the crank, case, and handle. Handle seems to have a small "r" on it. On the bottom is the number 40055 and a window with a "T". The arm is 13 1/2" and the screw holes 3" apart.
Tom from SWISCO responded:
June 1, 2020
Hello! Based on your pictures and arm size, I think you have an older version of our 39-013. Look it over and let me know if you agree.