Very nice! Not much help except to say that I think the ice pick guess is a pretty good one. It seems to makes sense as this is an old knife, and way back when ice picks were certainly a much used tool than they are today. You may already have this info, but this shows up in early catalogs as a "Model 200/R" - if that helps.
I would have thought something with an ice pick would have some " bar tools" on it. Corkscrew/cap lifter Could it be one of those belly piercing veterinary thingymadoofers?Whatever it is ... I like it