As far as I can tell, it was minted in Philadelphia. The item "1924 NGC Certified MS 65 $20 Gold St Gaudens Double Eagle" is in sale since Friday, January 17, 2020. This item is in the category "Coins & Paper Money\Coins\ US\Gold (Pre-1933)\$20, Double Eagle". The seller is "yobethchris" and is located in Littleton, Colorado.
This item can be shipped to United States.