Some comments...
1. This guitar was purchased about 9 years ago from a seller in Japan and then shipped to Canada.
2. It was shipped minus a case and thus a hard shell, Les Paul generic case was procured....
3. No changes to the guitar on my end from when I purchased it....
4. The guitar has some wear on the back and some dents that are hard to see with this camera... more details shots with my better camera would be required...
5. Serial number is as noted... and "stamped" into back of headstock...
6. Model... I agree there is some discrepancy in this as the 1985 catalog does indicate colour for the LS-50 BUT the other data on the site indicates that LS-50 had a 14deg headstock... in measuring this guitar the headstock is 18 degrees....
7. No additional stamps for LS-50 or LS-80 can be found....
Brent Warkentin
Quick pictures taken with my phone camera... link is at
https://docs.google.com/open?id=0B4VMOP-MYeagZWI1OGVkMGItMDY3OS00OTdiLTg3MjMtN2M1Y2NmZmJiZGQx