Hi Larry.
Your guitar was made in the same year as my L6-S: 1976 (the 00 at the front of the number means 1976). That's according to Gibson's web site. Mine is a tobacco burst with a rosewood fingerboard. I took it to my local luthier for a service a year or two ago. As I walked into the shop carrying the guitar in its case, the owner said to me, "An old Maton?" "No," I replied. "An old Gibson." "Even better." He responded. Then when I opened the case to reveal the L6-S he then said, "Gibson's most under-rated guitar." I bought mine new in '76 and it served me well for many years as my only electric guitar. Not that it is anymore, nor is it my only Gibson now.