I have a 38 S & W Special CTG, 4" barrel, s/n 559410, cylinder number matches, I think its a model 1905 based on things I've read from others. I am no gun expert. However, all others I've seen have the checkered grips...this one has pearl, fits perfect like from the factory. Were any sent out with pearl grips? I would think not, being M & P. This revolver is very shiny nickel, not blued...looks brand new. Says Made in USA on R/S. It is unbelievably tight and looks and feels new. Can someone shed light as to a possible year of manufacture? Thanks!