I have been working on a new dime design with my grandma since November 2011. The obverse of the coin features lady liberty and lettering similar the mercury dime. The reverse features an eagle facing right looking into the distance with lettering similar to the Roosevelt dime. I prefer not to post pictures here. I've recently completed the design and I'd like to submit it to the US Mint. How would I go about that?
When it is decided to consider replacing a current coin, a process starts, mainly driven by politicians. Here is a mint history of the dollar design that might give you some insight. http://www.usmint.gov/mint_programs/golden_dollar_coin/index.cfm?action=sacHistory
The only person on this forum that I know has actually designed a US coin is Daniel Carr. I would suggest sending him a PM or contact him through his website: http://www.moonlightmint.com/ Good luck! TC
It is my understanding that, due to legal issues arising from similarly designed State Quarters, the Mint is relying exclusively on their in-house artists for designs. This was a disappointment to me as I was hoping that my brother's design for "Arthur's Liberty" could have become an official US Mint product. Here's more: http://www.usmint.gov/about_the_mint/artisticInfusion/
Before you submit any designs to the Mint. You're going to want to get it copyrighted first. I would recommend you go to http://www.copyright.gov/ and research it.
Follow TC's advice above. Daniel Carr is as knowledgeable as anyone regarding this... and he will answer your email.
Carr got his designs on the coins during the period when they were accepting designs from the public for the state quarters. His designs won the individual state competitions and were selected by the state governors to be that states design. Once they changed the rules and required all the design concepts to be submitted as written description, no art work, all the designs were done by the mint artists.