United States commemorative currency collectible numismatic legal tender two dollar bill rare note federal reserve series independence declaration 1776 2026 semiquincentennial patriotic americana history founding fathers thomas jefferson white house president washington dc national landmark historic monument anniversary celebration patriot collector edition limited print run certificate authenticity official document engraved artwork currency design bureau engraving printing treasury department united states mint american heritage numismatic collection investment grade collectible display folder portfolio coin show dealer auction estate sale inheritance gift holiday birthday graduation retirement veteran military service appreciation keepsake memorabilia heirloom quality archival preservation acid free display case protective sleeve currency holder bill protector mylar sleeve rigid holder graded condition uncirculated crisp note sequential serial number low number fancy number radar note repeater solid note star note replacement note error note double denomination misprint collectible paper money world currency foreign note ancient coin silver gold bullion precious metal investment tangible asset store value inflation hedge alternative investment diversified portfolio numismatic value catalog price guide red book standard greysheet dealer network collector community show convention swap meet estate auction heritage pcgs ngc certified graded slabbed encapsulated population report rarity scale census data market value recent sales comparable realized prices