1999 - S - Silver - NGC-PF 70 UC - Connecticut-#3559118-076. 1999 - S - Silver - NGC - PF 69 UC - Delaware - #3328177-075. 1999 -S - Clad - NGC - PF 70 UC - Delaware - #3971041-022. The price of these investment coins is sky rocketing -- get these while you can still afford them.Review the individual prices at the NGC website. The item "1999-S-Silver/Clad State Quarters, GA, PN, NJ, CN & DEL Pf70 & Pf 69-Lot of 6 Coins" is in sale since Monday, December 24, 2018. This item is in the category "Coins & Paper Money\Coins\ US\Collections, Lots". The seller is "teekatoo" and is located in Florence, Oregon. This item can be shipped to United States, Canada, United Kingdom, Denmark, Romania, Slovakia, Bulgaria, Czech republic, Finland, Hungary, Latvia, Lithuania, Malta, Estonia, Australia, Greece, Portugal, Cyprus, Slovenia, Japan, Sweden, Indonesia, Thailand, Belgium, France, Hong Kong, Ireland, Netherlands, Poland, Spain, Italy, Germany, Austria, Bahamas, Singapore, Switzerland, Norway, Saudi arabia, United arab emirates, Qatar, Kuwait, Bahrain, Croatia, Malaysia, Brazil, Colombia, Viet nam.