New York, New York. $20 1875. Fr. 431. The Central NB. Charter #376. PMG Very Fine 25.Here is a significant New York City offering. This note becoming the only known 1875 series $20 note. Only a pair of original series $20 notes are seen in the census which furthers the desirability. Any collector who has ever tried to put together a denomination and type set of national banknotes together can tell you how elusive the mid-grade first charter twenty dollar note is. Most collectors have to settle for something ugly or spend low five figures for an AU or better example. While this note is rarer than just a "type" note, it would fit the category nicely.