Thanks for the pics! I really like that hone, I am glad you won that auction.

Do you find that the effectiveness of the hone changes when you lap it with different grits? I would suspect so. I have been reading some of the threads here on SRP about sedimentary vs. monolithic type stones and they make sense to me, but, as always, each hone needs to tested in actual practice.

This would be a company would be a good starting point for lapping that beast!

Hand Lapping Polishing Plates - Lapmaster