1999-S United States Mint Silver Proof 9 Coin Set w/ COA & Original Box(Nice). Up for sale is This 1999 U. Silver Proof Set in OGP — LUSTROUS SILVER COINS! Proof Silver GEM PR. The coin is in fantastic condition and will make a great addition to any collection. On occasion we find huge silver hoards, when we do we bring these unique opportunities to our customers in the form of these sales. Rarely these days do people have access to unsearched estate hoards, only the large dealers see these opportunities. They cherry pick the coins and keep all of the good ones for themselves. We pride ourselves on bringing these rare opportunities directly to the public. They do not last long and once they are gone, there gone.. These coins will make a nice addition to any collection! The item you see pictured here is stock photo and simply represents the content of what you will recieve, all coins in original mint packaging and may or may not have spots or toning due to age. If this listing has the Best Offer option, then we are willing to listen. If there is no “Make Offer” option, then this our best price. Our Prices are low to begin with. We will do our best to respond to questions and/or offers as quickly as possible. Every effort will be made to process your order within a timely manner. Please see your order for the tracking information. It will be posted once a label is issued on our end. We offer a 14 day return privilege. This would force us to raise our prices. Please help us keep the prices as LOW as we can! Thank you and if you have any questions, please don’t hesitate to ask! Please let us know. We do make occasional mistakes and would never intentionally list something incorrectly. Keep this in mind when making us an offer to increase your chances of making a successful offer. We do our best to consider all reasonable offers, however, we work on extremely close margins. We do realize that market values fluctuate, but if you would like an explanation of the value of any item, we would be happy to provide one. Track Page Views With.