The Schofield IS a number 3 model. It is simply, like the Russian model with the funky finger spur, a sub variant created by making changes to the basic number 3.
I suppose the truly correct nomenclature is No. 3, and terms like American, Russian, Turkish, and Schofield are descriptive phrases that serve to further identify particular variations.
"The gift which I am sending you is called a dog, and is in fact the most precious and valuable possession of mankind" -Theodorus Gaza
Baby Jesus cries when the fat redneck doesn't have military-grade firepower.