Solingen is a City in Germany.
There are many blade manufactures that operate from there:
“Dreiturm, DOVO Solingen, Wüsthof, J. A. Henckels, Böker, Eickhorn-Solingen, and numerous other manufacturers. Wilkinson’s German operations are also based here”
http://en.wikipedia.org/wiki/Solingen
However, I have had knives that were stamped Solingen that probably never were any closer to Germany than Peking..
🙂
Also, those different manufacturers have different lines that use different grades of steel. I don’t think that he can assume anything about the steel based on the stamp.
In any case, knowing the specifics of the steel that one is sharpening can go a long way towards letting one understand how to plan a sharpening strategy.
Nothing wrong with starting with what is there, but if that is not acceptable, figuring out where to go from there is highly dependent on the quality of the steel.
Isn’t Solingen a famous cutlery area of Germany as is Sheffield for England .
I would guess that since it is a famous area for knives the steel will be good Northern Europe produces very good steel so much so one of the Japanese chefs knives makers use Swedish steel .