Casement window cranks

A quick learner from Spotsylvania,Va says:
June 8, 2014
The operator arm has a few numbers on it. They are 6D 304 OPO5-1509 2 The most unique thing about these operators is that the operating tit is in the handle. The handle appears to insert into a snap collar on the operator.
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Tom from SWISCO responded:
June 9, 2014
Can I see a few pictures of the hardware in question? That will help us locate the best possible match for you. Thanks!
A quick learner says:
August 19, 2014
From Dennis,

Please accept my apologies for this taking so long. I hope we can still continue to discuss this.
User submitted photos of a window operator.
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Tom from SWISCO responded:
August 20, 2014
Thank you. I would start by looking at our 39-341 and 39-342. See how well these match your operator.
Roto Dual Arm Casement Window Operator
Roto Dual Arm Casement Window Operator
39-341
$42.45
Roto Dual Arm Casement Window Operator
Roto Dual Arm Casement Window Operator
39-342
$42.45
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