Section 5
Sec. 5. As used in sections 184, 185, and 186 of Commonwealth Act Numbered Four hundred sixty-six, the phrase "original sale, 'barter, or exchange'' shall be construed to mean the first sale, barter, or exchange of articles by every manufacturer, producer, or importer: Provided, however, That where the taxes prescribed in said sections have not been collected on articles, die original sales of which are subject to tax, in the possession of any merchant, the first sale, barter, or exchange of said articles on or after the approval of this Act shall be considered as an original sale, barter, or exchange and shall be subject to tax at the rates prescribed in said sections 184, 185, and 186.