Samuel Blatchford, Turner v. Maryland — Opinion of the Court
“ Whatever discrimination in this respect, or in respect of purchases for exportation, before referred to, results from any provisions of the law, is a discrimination which, we think, the state has a right to make, resulting, as it does, wholly from regulations which affect the article before it has become an article of commerce, and which attach to it as and when it is grown, and before it is packed or sold. The tobacco is grown with these regulations in force, and the state has a right to say what shall be lawful merchantable tobacco. ”
