P.S. Following the matter only to the 9:00 Minute Mark from there we find that Title 31 USC §5115 makes it clear:
Like I keep saying; Make your demand clear and you get US notes in the form of Federal Reserve notes.(b) The amount of United States currency notes outstanding and in circulation—
(1) may not be more than $300,000,000; and
(2) may not be held or used for a reserve.