> Please see link: http://www.designscomputed.com/coins/pres_2007.html
> How often are "concept coins" commissioned? Is there any governmental
> control over the process? I presume they have no official monetary
> status; is that right? Any comments, historical info welcome as I
> wasn't able to Google much on this. Thanks.
In the case of Daniel Carr's designs that you have linked, those weren't
commissioned by the government. Carr simply sent those computer designs
to the government to show them what is possible with modern technology
in the design phase.
Ron Landis of the Gallery Mint Museum also has produced "concept coins",
minted to go along with his ideas for the introduction of the Sacagawea
dollar, but the minted coins were completely separate from any
Bernard von NotHaus, of the Royal Hawaiian Mint, made a similar
Here's Carr's other, earlier, dollar designs: