1 One 90% Silver Roosevelt or Mercury Dime, from the 1930's to the 1960's. 1 One Coin that's Extremely Old at Over 145 Years Old, from the 1870's And Older.
Such as a First Design of US Nickel, a Shield Nickel (partial or full date) or the First design of US Penny, a Large Cent. One 1 Kennedy Half Dollar from the 1970's to 1990's, a unique US half dollar denomination, despite normal mintage numbers, rarely seen in circulation.