Jim Beckett had a 58 Kahns and he pictured it in his Annual Price Guide. I always figured that I would be able to find one because of that. 7 is a low population, but I have found cards with lower populations.
This has a psa pop 5 and is highest graded.
This has a psa pop of 5 with 1 higher.
This has a psa pop of 5 with 1 higher. 2 sold last year.
This is my favorite card. It has a psa pop of 3 with 2 graded Auth.
So I have hope that one day I will get a 58 Kahns.