Thread: Dixie hone I.D.

I have a Dixie hone in a box labeled S. R. Droescher. (see picture below). I am assuming that, given the similarity of the description to the one listed in the Wiki (S R Droescher Genuine Water Razor Hone - Straight Razor Place Wiki) that it is one of those. I have two questions that I hope a knowledgeable person might be able to help me with.
1. Is this a good brand?
2. What does the "Blau–Blue" label on the left side mean?

Thank you.