at the link below, a couple of pages of "ice cream slicers". Notice the shape of many of the blades (rounded bottom and top bevel) are almost identical to yours.
http://images.google.com/images?q=%22ice+cream+slicer%22&svnum=10&hl=en&lr=&start=0&sa=N&filter=0
A note about ice cream knives...
>>> To the reader unfamiliar with the subject, the number and variety of dining implements in Bird's Nest may be bewildering. However, in the late nineteenth century, when ten or more courses were the norm for a formal dinner, it became increasingly fashionable to have flatware designated for serving and eating specific foods from soup to nuts. By the end of the century, many full-line patterns included more than a hundred different implements. (27) And some of their designations now seem foreign--for example, "knives" for pudding, ice cream, macaroni, jelly, and so forth. These are explainable by the implements' shapes, if not their intended function. Unless meant for cutting meat, in which case the blades were made of steel, solid silver serving "knives" had silver blades that were not sharp, silver being too soft to take a cutting edge. Thus, such pieces were servers, not carvers. But, since the Victorians felt instinctively that, with a few exceptions, (2
every silver dining implement had to be classified as a knife, fork, or spoon, they applied the name "knife" to anything that more resembled a real knife than a fork or a spoon. In the first quarter of the twentieth century, the designation of all-silver serving implements as knives was generally abandoned in favor of servers....
... Bird's Nest includes both an ice cream knife and a pudding knife, which is unusual. In some flatware patterns, an ice cream knife (also known as an ice cream server) has a relatively broad blade with an asymmetrical shape, a variable but small degree of dishing, and an upturned right edge, the piece being intended for scooping relatively soft bulk ice cream. This and most other servers in which it makes a difference are designed for right-handed users. In later patterns, an ice cream knife (also known as an ice cream slice or slicer) intended for slicing and serving hard-frozen commercial brick ice cream has a narrower and longer asymmetrically shaped blade with no dishing and with or without an upturned right edge. Most often "pudding knife" is just another term for an ice cream knife of the earlier type described above. But in the case of Bird's Nest, the pudding knife and ice cream knife are different."
---from Magazine Antiques
http://www.findarticles.com/p/articles/mi_m1026/is_3_166/ai_n6190029/pg_2
Thing is John, yours doesn't look at all Victorian, much more utilitarian than fancy and closer to Art Deco. I'd guess it's from the 1930's or 40's.
Thanks for posting!
S.
There is no sign at all of any plating. But like you mentioned, the size is right, and maybe so are you. Thanks for the information Gabe.