Crayon Sky Music

Is this a real gibson les paul custom or just a scam?

http://toronto.kijiji.ca/c-buy-and-sell-musical-instruments-guitars-Gibson-Les-Paul-Custom-W0QQAdIdZ222194861 Looking through the photos

It is difficult to talk about the pictures, but the controls on the serial number. This is a serial number 1983. Very good price if what it says and plays well