Micky,
It could be an early 69' Les Paul that has been retopped. The big headstock would be right. The 68's had a narrow headstock like a 59' but with the shallow rake angle. They were also fitted with P90's. Later these guitars ended up with the sandwich body and the 3 piece neck and became the "Deluxe" with mini humbuckers.
BUT
, very early on in the production run, the first batch of 68/69 Les Pauls had one piece mahogany bodies and necks. I know because years ago I owned a 68' that had the gold stripped off the maple cap to reveal a nice 'Blister' top underneath. I was going to 'lash' this guitar up but it was too nice and I bottled out. Plus, like your late 60's custom it was bloody heavy and had the wrong headstock rake so I sold it.
So, your guitar does look re-topped but it could be a 69'. Take the pups out and see if you can spot trace P90 pickup routing in the mahogany. Also a couple of screw holes about an 1" apart (may be filled in) will show at the bottom of the pickup cavities where the P90's were once fitted.
Does anyone remember Dick Knight? Micky, you may have one of his conversions here. Unfortunately, there was a period when these late 60's Gibbo Lesters were being re-topped and sold off by owners as late 50's Burst's (no, I wasn't gonna do that! :roll: 8) ).
Also I noticed form your pics that there is a trace of a stamp between the top 2 tuners on the back of the headstock. Does this look like "Made in USA" to you?