Ok, I just won this off ebay:

Vintage Shaving 2 Sharpening Razor Stones Belgium in Box Barbers Razor Hone | eBay

First off sorry if I out bid you .

Secondly, I've only used a set of nortons, the infamous C12k and pasted strops.

I believe the two tone stone is a Belgian Coticule I have no idea what the other is, and if it will be of any use.
Any advice on how to prep these hones before using?
I'm sure there is plenty of help with how to use a Coticule in the library. Just wondering if there is anything I should do to get it, and the other as well, set up properly before use.

Thanks!