Just wondering if these were original to this home?
YES
I take that back, they look like mid 80s to mid 90s
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Thanks. But not modern thermopane. Possibly 2 pieces of glass welded together but no air gap.
It was the string sash cord that got me. Only Andersen in my experience.
I wasn’t rudely gesturing either.
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How can you tell how old an Andersen window is?
Product Identification
The logo is located on the interior bottom right-hand corner of the window. See example below. The etched logo provides the date of manufacture and type of glass only
I’m just curious: was the track aluminum or plastic? I do not recall seeing plastic tracks in homes from that era.
Plastic. That throws me. Hard to rationalize. What year you think Andersen had clear dual pane with about 1/4" seperation. Early 80’s?. These predate that so from the 70’s?. Just never seen them in this scenario. And yes I know how to identify and date these, Nothing like that here. The lock is different too, but the typical Andersen jamb with string used til the late 90’s was the thing.
Anyhow just interesting thats all. Client knows to upgrade. They were kinda nasty outside. They also had a bay window with 5 casements. Just looked like ancient Andersens. All cranks were kaput 
Thanks for replying. How the hell do you find time to inspect??
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There’s a good chance that they are original windows
They look like Andersen Windows I had in a late 60s home I owned. Mine were called Primed Narroline, if I remember correctly.
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I agree with Scott and Larry.
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