Some speculums are closed on one end to prevent trauma during insertion ... especially nasal and, er, back side. However, the handles are connected to the bell in the wrong place, they should be near the edge on the big end ... and if that bell is 2" x 4" - that would be a big oriface and not able to be inserted more than about an inch or so. So veterinary rather than human use would be more likely if this is a medical instrument - especially since the spring holds it open, rather than closed. Humm ... maybe if you lived on a dairy farm you could dip it in warm water and use it as an udder warmer?
Quinnels are, if I remember right, football shaped - and all of the conical ice cream scoops I've seen are more conical, less bullet shaped, and have a button on the top to press the ice cream out (although that sure doesn't mean I've seen all of the antique designs).
It could be used to mold rice for presentation, or to make bullet shaped croquettes ... but I think GB has given us the best clue as to it's best use ... as a mold for Beldar's favorite French Meatballs!