Hi all SG noob (but long-time Les Paul player) here, asking if any SG experts could help me work out if this one is worth a look: (web link goes in here) It looks to be in very good condition given its age. Is it really a 75? My research leads me to believe it might actually be a little older. And was this a good era for SGs, or a bad one? The price in US dollars works out at around $1,540 if that helps. Thanks for reading!