As I've said previously, I am not actively pursuing "Robeson" marked knives any more, but then again, I'm not stupid, either.

This knife is Marked ROBESON / CUTLERY Co.
That mark with the line under the "o" is almost always found on knives made in Germany for Robeson between 1891 and 1895.
The seller did not mention Germany in his description and none of his photos showed it distinctly to be on any of the tangs.
I suspect it's there somewhere, though.
I cannot tell how long the knife is and he didn't say. Three inches, more or less.
I got this for $76.00.

I think I'm going to like this one.

These are the auction pics.
Charlie