1840 Silver Dollar, Seated Liberty Silver Dollar NGC PF62. 1840 Seated Liberty Silver Dollar NGC PF62. Christian Gobrecht’s Seated Liberty design translates brilliantly to the large size of the silver dollar and the result is a numismatic masterpiece. Couple that artistry with true scarcity and the result is a stunning and classic rarity such as the one offered here. With less than 20 estimated to exist in any proof grade, this first year issue is rarely available for sale and presents a unique opportunity to the astute collector to add it to his/her collection This lovely piece has an excellent strike and deep, rich, attractive darker tones.