Welcome aboard from the GunShine State.
That sure is a puurrty lookin' piece of Stainless that you have there. I tried to look it up in my Fjestad's blue book (c. 2001) It ain't listed. Did you try to run the sn at the Rossi web page? Enter the number an see if it is registered. No spaces. Sometimes "O" looks looks like "0". Rossi USA - Find My Model
Now all you need is about 1,000 rounds of 38 Special to feed that thing.