I have just purchased an SDR-35. It is in wondrful condition. I may entertain thoughts of selling this guitar, if the price is right. You can E-mail me at eee.zeee@yahoo.com , All I have been able to find out so far is was made between 1987 and 1991.Maybe you can help me find out more specifics.Truthfully its probably not going to be sold. It sounds, plays and looks awesome.