Late 80's vintage acoustic classical guitar YAMAHA CG-120A
Serial Code: 91108390 
I bought this in early 90's and according to the serial # that means this was built in November the 8th 1989
Check out:
w w w . guitarinsite . nl 
w w w . yamaha . com

features:
Neck , body's bottom boards and ribs made out of Nato
Top board : spruce
Bridge and fretboard : Indian rosewood
I added a strap button on the rear

Length w/o count the strap peg; 39-1/8" or 995 millimeters
Lenght to nut to bridge; 25-3/4" or 655 millimeters
Body maximum Width at the shoulders; 11" or 28 mm Body maximum Width at the bottom; 14-9/16" or 37 mm
Body Thickness on the front; 3-3/4" or 96 mm Body Thickness on the rear; 3-15/16" or 100 mm Fretboad width at the nut; 2" or 51 millimeters
Fretboad width at the 12th fret; 2-15/32" or 63 mm


...Over time it's got several chips, dings and dents, on the finish, then I tried fix by myself own by some clear paint and a brush... because of am not a painter so then the result looks very rude or crude or a mess, but pretty functional IMHO. The finish - expecially on the neck and body sides - has got foggy and tarnished over time. Some light worn-out on some frets but not all that remarkable. 

To visit my other's items for sale you have to look for me through eBay.IT otherwise your system won't allow you see all my listings. 
WORLDWIDE SHIPPING from Italy so that - not US - is my "domestic shipping" hence delivery might take a bit longer than what eBay will display, not to mention it's up you Customs too and nobody - eBay neither - know how long of a time they takes to clear goods.