Weather Strip
I'm afraid I don't know what seal your door might have used originally. Cole Sewell has been out of business for a long time now, so we don't have any records of what their product line might have been, and odds are the exact seal isn't even available anymore.
It may be possible to offer an alternative that's the same size, but that is incredibly hard to do without the original on hand as a reference. I can't tell from your photos if your original seal is missing entirely or just damaged. Can you verify?
If it's just damaged, would it be possible to remove an undamaged sample and show us a clear shot of the end profile? We'll also require written, precise dimensions. With that data in mind, I'll try to track down an appropriate match.