Originally Posted by
hatzicho
The hone was sold by the Schleifmittel AG (SAG). As a follow up company to Escher&Co they sold thuringian waterhones under different names. I have not come through this factum labelled hones, but it looks like a blue thuringian.
The interesting thing is that on the left side of the label, the shown eagle looks like the symbol of the Adler Schleifmittelwerke, which now belongs to the Friedrich Müller GmbH. I don't have any information so far, if - and when these both companies have joined together and how.