Roadsweeper - I have some potentially bad news for you. I'm not a Gibson guy, but if you compare the two headstocks photos closely, you can see a few differences - firstly the Gibson logo is different - the whole logo looks bigger on your one, and the dot on the I is in a different position, the G is wider on yours, and the squiggle on the bottom of the n is different. Also it's much closer to the top of the headstock, and further away from the Les Paul script.
The truss rod cover - as well as being an odd shape the top screw is lower down than on the first one than on yours, and the bottom screw is closer to the nut on yours too....