Raven Barbers Hone

[Brando]

I just picked up this Raven barbers hone unused with its origanl box. So tonight I decided to give it a shot. WOW! It worked excellent. I was using chroium oxide on a balsa wood strop to touch up my razors when needed and I was getting a nice shave but it didnt last too long. This Ravens barbers hone gave a much nicer edge and a buttery shave. Im hooked im doing my razor touch ups with this from now on, I hope the edge lasts longer than the chromium oxide does.
Has anyone heard of or used a Ravens barbers hone before and know what "k" it is, im guessing 8000k+? This hone is very hard and smooth will it still need to be lapped? If so what would I lap it with. Its nothing like anything in my Norton set. If it does need to be lapped could I use my Norton lapping stone? Any help would be appreicated.
Thank you, Sincerly Tony B.