You can get any version from the library to start.
While the prices in the book will not be current, they will show the price relative to other notes in the same series.
Then search the internet (e.g. ebay) and find current selling prices for each note. For notes in which you cannot find an identical, finding one in the same series is good enough. You can extrapolate your notes going value by adjusting for condition and relative scarcity as identified in the Friedberg catalog you do find.
While the prices in the book will not be current, they will show the price relative to other notes in the same series.
Then search the internet (e.g. ebay) and find current selling prices for each note. For notes in which you cannot find an identical, finding one in the same series is good enough. You can extrapolate your notes going value by adjusting for condition and relative scarcity as identified in the Friedberg catalog you do find.



















