If a picture is really worth 1000 words, then you are 951 words short in your post without the picture. The MS and MS 92 probably mean made by a Master Smith and probably in 1992. The other side of the blade should have a name or some mark, initials etc.
WW Gross is listed in the 2011 directory of "Knives 2011" at 109 Dylan Scott Dr. Archdale, NC 27263-3858. No phone number listed in the directory.
I hope this gets you started and welcome to Blade Forums.
Paul