Dave Sr. from SWISCO responded:
May 8, 2015
Hey, Gerry. Looking at your photos, your operators do appear to be the older square version of the 39-013 and 39-014 operators. Depending if you need left and right. You might also want to consider purchasing the 39-205 folding crank handle. I put them on my casement windows at home and they work great. They fold down out of the way so they do not interfere with the window treatments.
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