Naaa, is niä wohr...
Not to spoil your hone party, but as indicated previously, there just
might be a database for those hones in the Wiki shortly. Now, there obviously is not too much of a story to tell about Nortons, but for natural stones,
articles like these seem more useful than a number of threads in a sub forum: Belgian Hones - Straight Razor Place Wiki. YMMV, of course, but please consider the advantages of having knowledge in one, easily accessible place (read: Wiki) - as opposed to news and discussions, for which forums were initially invented.