Technical Window question

I have a passenger door glass. Can anyone decode the stamp please. I found as2 means door glass and the 18 is ppg or vice versa

 

I bet more of these guys could tell you what it fits based on a good overall profile pic than that code.

 

I sorry.............what did you ask. I've been too busy studying the picture in your avatar. ......................Wait...what.

 

Ok thanks I'll take a full view picture.

 

I can't tell for sure, but my guess is a 70-80's El Camino.