Help me identify this operator

A quick learner says:
March 12, 2012
I do not know what to buy.
A customer submitted photo of a window operator.
Profile picture of Dave Sr.
Dave Sr. from SWISCO responded:
March 13, 2012
Thanks for posting! Unfortunately, I'm having a bit of trouble recognizing this operator. If at all possible, can you please take a picture of it from the top down, so that I can see the positions of the installation holes? This will help me determine what operator you will need.

Also, is the hole on the end link threaded? Please let me know. Thank you for your cooperation!
A quick learner says:
March 15, 2012
Dave,

operator 77-13301

attached is top view as you requested do u have my original email w/ all dimensions? I had drill out connecting arm to remove..but I don,t thinks there was any threads Pls advise if any further info req'd. thanks for uir help Mike
User submitted picture of window operator.
A home owner from Ft. Myers, FL says:
March 15, 2012
with the top view I sent, do u have operator that will work. I would like to order ASAP
thanks
Profile picture of Dave Sr.
Dave Sr. from SWISCO responded:
March 15, 2012
Thank you. Please take a look at our 39-016 and 39-017 Pan Am/Daryl Window Cranks and compare their dimensions to your own hardware. Do you think they will match up? Please let me know.
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