Welcome to IFI, I sure someone with a copy of AIA will be along to answer when it was made. In the meantime have you read this yet? READ THIS FIRST
What it is worth largely depends upon where in the world it is located, hence the suggestion to edit your profile to show location. To me it looks like a perfectly serviceable anvil as long as the rebound & ring is satisfactory. Have you read about not doing any milling, grinding or welding on the hardened top plate? As far as painting it red, it beats hot pink.