I have a question concerning an Oliver Red River Special Threshing machine that belonged to my grandfather.  My grandfather passed away a few years back and now my father and I are in possession of it, but we know very little about it.  I have a serial # for it and I was wondering if anyone knew of a web page that I could visit to determine what year this threshing machine is and any information about it.
Any help would be greatly appreciated.
Thank You.