Is this original glass

[PbFut]

I asked this question on the vent windows a while back but now realize that all 4 windows have LOF glass.
Is it possible all 6 windows still have factory glass? I can't imagine the front is original with 150k total miles, but it is possible it was replaced at some point with OEM???
This is on all 6 windows. See pic.
I was going to take the truck in to have the glass tinted lightly and reinstalled. But if this is original glass, I am thinking it may not be wise. Or, is there so much of this stuff still around it's not particularly difficult to find and loosing a set to tint, which is reversable, is not a big deal.
Thanks for opinions.

[PbFut]

Opps forgot picture

[chewychevy67]

I believe that is the original markings

[dmjlambert]

Original glass or not, my opinion is don't let it rule your decision about tinting. As you say it is reversible unless a piece gets broken during the doing or undoing. But then a piece could get broken going down the road or while parked.

[PbFut]

I looked around some more. It appears OE glass is not particularly valuable so there must be plenty around. I did not see windshields but I think I'll stick to my plan. It's not the value but the preservation if it was something difficult for someone to obtain.

[1970cstblazer]

Almost impossible to find a good original LOF windshield. The lamination clouds up at the bottom and up the sides over time, especially in wet climates.