not much actually, proof normally have better fields and definition due both the coins and the dies not being worn. Might need some experts to chime in as the proof that I have seen don't see much different to regular or business strikes, however I know that the many had paper bags/envelope when issued.
Disclaimer: While a tremendous amount of effort goes into ensuring the accuracy of the information contained in this site, Coin Community assumes no liability for errors. Copyright 2005 - 2026 Coin Community Family- all rights reserved worldwide. Use of any images or content on this website without prior written permission of Coin Community or the original lender is strictly prohibited. Contact Us | Advertise Here | Privacy Policy / Terms of Use