Mint Silver Proof Set. Original Sealed Envelop Proof Sets. Lot of ten sets. (10) Unopened 1961 Silver Proof Set Original Sealed Envelop Sets lot of ten. All coins graded according to ANA standards, but more importantly must meet YOUR STANDARDS. Please be patient, all orders are professionally invoiced, double checked and securely packaged. Customer service is important to us, your satisfaction is guaranteed! Please give us the opportunity to correct any issues and make you satisfied with our service. Serial numbers will be different than the serial number on image, Unless Stated otherwise. Joel D Rettew Rare Coins LLC. Claims against grade are handled by sending item to respective grading company for what is called an Appearance Review. Does not give investment advice or guarantee a profit. Is not responsible for typographical errors or acts beyond its control. The available population of a certified coin or the grading trend of a certified coin can change at any time. Be aware, there may be slight delays due to holidays or inclement weather. We do our best to see to it that your items arrive to you in the shortest amount of time possible. We do not combine on auctions Or coin supplies. In the event of a lost package, we file claims for you. We are not able to file a claim until a package has been lost for 30 days or longer. On signature confirmations it does not matter who signs for your package. Keep in mind if you are sending packages to your office. Anyone at that address can sign for your package. Due to the fact that silver is a very volatile market this coin is not returnable or exchangeable. If you feel your coin has been mis graded they would need to send coin to NGC for what is called an appearance review.