Savorino,
I'm no expert on the 99 and I read the following information at the Savage99 website. Here is a link in case you don't have it:
http://www.savage99.com/According to that website, your rifle should have "Model 1899" marked on the barrel. In addition, it should be pretty close to the following in each respective category:
1899 CD
Barrel: Round, octagon, or half octagon, half round, 26"
Buttstock: Pistol grip w/ checkering
Buttplate: Steel or rubber shotgun butt
Forearm: Straight, schnoble tip w/ checkering
Front Sight: Knife edge dovetail
Sorry, but I have no info on the medallion. Without actually seeing the rifle, I'm inclined to agree that it has been reblued. Post some pics of it if possible.
Skunk