How much is a freedom tower 2004 25 dollar gold coin worth?

2004 $25 - Freedom Tower:

This so-called coin is 1/4 ounce of pure gold. None of these coins are US Mint issue. Sales of this coin apparently were halted when sales of the 2004 $1 coins were banned. It has no numismatic collectible value, but it is 1/4 ounce of gold that is valued at about $300.00