I have found myself looking at various models of Fox Knives.  My searching has brought up a few more companies that I was a little surprised to see.

The 'modern' and probably best recently known brand has the following 'logo'.  I think this has been in business since 1977.

There is another brand Black Fox:  I am not sure if this is a stand alone company, or a division of Fox Knives (above).  I have also seen it in association to Boker.

I have also very recently seen:

'Rostfrei' is German, and I believe it is a generic term for stainless steel.  From what I have learned so far, it is basically the equivalent of 440A or maybe 440B.  Decent, but not 'good'; and reasonably priced.  Obviously more popular in Europe than the states.  The FOX is all block letters.  I have found a few knives like this, but cannot find much information about them or the company.  Is this an early stamp of the Fox Knives company above?  I really do not know.  I cannot find anything either way on it.

Can anyone shed some additional light on this?

Thanks!