I’ve see a lot of information regarding Gibson Les Paul models weight-relieving, but never a condensed, concise chart about all the variations. So, based on all information I could gather, mostly from here and here, I compiled the chart below.
|up to mid 1982||solid||N/A|
|mid 1982 to late 2006||9 holes|
|late 2006 to 2011||chambered||9 holes|
|2012 and beyond||modern|
Follow the given links to see images of what each weight-relieving technique look like.