Search:

Some have used it as a finisher. My progression is Coticule with heavy slurry with a few dilutions, BBW light slurry, BBW water only, Coticule light slurry, coticule water only. This seems to work...

Here's mine for comparison
5 7/8" x 1 3/8" X 3/4"

Glued Coticule/BBW combo

100186100187100188

You will like it for sure!
Check the other side as well. It looks like a glue together instead of a natural, but there's a fairly good chance it has a BBW on the back.

If you lap it the yellow side will make light yellow slurry and be fairly soft, the BBW side will make purple/blue slurry and be fairly soft, if it's slate the slurry will be greyish. If it's man...