York Luxaire Capacity and Age

Can anyone tell me what the capacity and age is of this Luxaire furnace?
Model #: PDSHLD12N075B
Serial #: EGVP018992

Thanks

That’s from this thread:

Or try this:

http://www.buildingcenter.org/luxaire

According to this page it would be July 1988.

http://www.buildingcenter.org/system/files/userfiles/images/LUXAIRE%204_0.jpg