I have no doubt that it would cut; that is not the point. In 1885, cucumbers were not carved at table like a turkey. They were pickled, soured, sauced, or stewed, not served in the whole except perhaps as decoration. At tea they were served in sandwiches, of course, sliced as thinly as possible (which requires a very sharp broad bladed knife), but would not be prepared at table. It makes more sense, given the masculinity inherent in the object, that it was something clever for the gentleman's port and cheese table. Perhaps someone will find an advertisement or such that will dissuade me, but until then I reject the claim. As for the auction house, I generally assume they don't know what they are talking about and am seldom disappointed.