have to agree with numerous posts, do NOT buy the modern, brazilian made nickelsons.
keep yr eyes out, new old stock nickelsons appear now and again, along with lots of old ones at estate sales, farm auctions , flea markets etc.
there is an old hardware store in kansas city, harry j epsteins(a google search shld take you to their online store), that is always on the search for these new old stock american made hand tools.
they have a crate of such nickelson farriers rasps on the way right now and should be in the store this coming week.
the owner told me they would be selling for about $15 each.
i have purchased NOS amer. made nickelson rasps from them also, tho they are currently out.