Unidentified Hardware

A quick learner from Michigan says:
November 20, 2016
I am at a loss for this window hardware. My parent's house was build by a contractor that used "industrial" parts that are so irregular that it is often hard to find parts. It was build in the 60's. This being a prime example of tough finds. I am looking for any help...hope you're up for a challenge. The only marks are what looks to be an L with a Z inside it(best guess) and a K inside a spade (along with the RH for the right hand). I tried to take pics of the two tiny markings.
User submitted image of their window hardware.
Profile picture of Paul
Paul from SWISCO responded:
November 21, 2016
Please see our 39-014 and 39-013, these operators look like they might match the operator in your picture. Also see our 39-114L handle, if you need that.
Casement Window Operator, 13-1/2" Arm
Casement Window Operator, 13-1/2" Arm
39-014
$20.70
Crank Handle, 11/32"
Crank Handle, 11/32"
39-114L
$4.42
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