says Gibson Kalamazoo Michigan USA i got it for $10 with a gator skin case fan braced in the lower face but cracked from the bridge area to the sound hole not to bad of fix it will always be there unless I go for the new top what would you recommend please for the top crack like this look here are the serial #s can anyone tell me the year and or teach me to read serial #s from Gibson on the back of the neck it says 954689 ?what dose this stand for ?model #or style # is c-1d classic can someone teach me what this means please