Yamaha 1966 sg3 sunburst

I have a yamaha 1966 sg3 sunburst. Has not been used for over 45 years. My dad bought in 1966.  Needs some work done to it. I am not a guitar player so i really don't know exactly  the extent of work needed. I can post some photos. I want to sell it and i am wondering should i even bother or should i just keep it? does it have any value?  Thanks for your time, Athena


1966 Yamaha SG3

Hello Athena! I'd like to know more about this guitar if you still have it.