Sears Roebuck & Co. tractor 917.99500

HELP!!! Can anyone tell me what year this 917.99500 Sears Roebuck & Co. tractor is??? Also look at the headlights, I can’t find a tractor with these kind of lights. I was told from the person I got it from that it is a 1958 or 1959 and could someone tell me what it is worth$$$
Thank you for your help.
Brian

It's an early Custom 600 from 1964. The owner put a light kit on it and homemade stirrups on the footrests to keep his feet from sliding off.

The pictures show that it's in good shape. Value is affected by region and other factors. Bring it to a local tractor show and see what kind of offers you get.

Hi Spence,
Thank you very much for your reply and your help...Great job!!!
Brian