Thanks for the replies. I didn't want to start another thread asking for help to identify another disc so I'm going to just add on to this one. The owner of the disc I asked above never replied back after leaving him a message so I'm moving on.
I decided to keep searching for the disc that I originally wanted, which is either a #37 10' or a #370 10' and have finally found what I wanted. I now currently have a choice of purchasing between an IH #37 and this IH disc. Both discs are in similar condition; being both will need disc blade replacements. Unfortunately the owner of this disc doesn't know the model and I also don't so I'm hoping some of the experts here will know.