To: multiple sigma owner

Thanks so much for the info. That helps narrow it down a bit. Mine does not have the open back tuners. It makes sense that they were manufactured in different factories, since many of these posts have said that these older ones are all solid woods- mine is definitely not. It's difficult to tell but I think it's all laminates.

Either way the guitar is in really good shape the bridge is not separating from the top (I keep it stored with no tension in the strings) The previous owner had medium gauge strings on it when I got it and the top was a little bowed, but I changed them and it hasn't gotten any worse in the 25 years I have owned it

Thanks again for all your help- I may try to sell it if I can figure out a decent value for it