I've posted on this site a couple of times in hopes of learning more about my old GCS6. I came away believing that my old axe is made of sapele, would have a solid spruce top, and was likely built in 1974 The quality of these original Japanese-made guitars were rated on a 1-7 scale, with 7 indicating the highest grade. On a recent net-world wandering, I've come across two GCS6 guitars currently being sold. Both refer to my old guitar as a dreadnought made of mahogany and having a laminated spruce top. I'm assuming the shops that are selling these guitars have not had the benefit of some of the knowledgeable people who have posted here.

There are several reasons I'm going to trust the information gleaned from this site. First, I have three acoustic guitars; a rosewood, a mahogany and whatever the GCS6 is. The sigma's wood does not look like either of the others. Second, if dreadnought refers to size, the Sigma is not a dreadnought. When I pick it up after playing my BR-160 (a dreadnought), it feels like a ukulele. I can't figure out the top, but I interpreted SW's post as saying that anything done in the 70's would have been a solid wood…back and top. Hmmm. By the way, for others who have wondered about the value of this guitar, nobody has bid with less than a day remaining and with a minimum bid of $300.