The back of the headstock is impressed with the serial number “170860” as well as Made in U. We have not been able to find another example of a vintage Les Paul Custom from this era that has the Super 400 split fret markers, but we can find no signs that the neck has been tampered with, and since it has a set neck I don’t think you could swap it out without it being really obvious. So, a rare custom model? You collectors out there will know better than I, as I’m mostly an antique dealer. That being said, we’ll include as much info as possible and try to give you the most accurate info. We took pictures in natural sunlight to help accurately show all condition issues (which are very few and very minor). It actually looks better when seen in person. Some of the measurements are as follows. Fret Board Length 18.25″, Width at top: 1.75″, at bottom 2.25. Body width at widest point: 13. Body length: 17.25. This guitar is in exceptional condition, even more so considering its age! We would give it a about an 8.5 out of 10. There are no condition issues easily seen, and under close inspection there are about 3 small dings (on the bottom side near output plug and on top side) that crack the finish but not through the paint. The bottom has a little bit of light scratching but very minor. The white edges have begun to yellow with age, but that is to be expected. The finish on the tuning pegs is a bit worn. The pickguard has some very fine scratches that can only be seen when held at an angle in the light. Neck is straight with no fretbuzz when played, and there are no electric issues. The case appears to be original. The Gibson logo has worn off but you can tell were it used to be. Also, the original owners name is on the case but has also faded and is only somewhat visible. The case still functions well and is sturdy. Interior is nice, with just one spot of tearing by the tuning pegs. While we do our best to accurately describe all items and conditions, we are not perfect, and sometimes condition can be a subjective thing. We always try to err on the conservative side when it comes to grading condition. Your total satisfaction is our goal! The free listing tool. The item “1970-1972 Gibson Les Paul Custom Black Beauty Rare Super 400 Fret Markers Minty” is in sale since Sunday, May 01, 2016. This item is in the category “Musical Instruments & Gear\Guitars & Basses\Electric”. The seller is “cabusby” and is located in Winter Park, Florida. This item can be shipped worldwide.