If I am understanding you correctly, the coins are inside of a letter opener, like encased in it. They are most likely plated to look silver colored and would hold no numismatic value in, or outside of the letter opener. It would be best to leave it alone and keep it as a conversation piece.
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