1902 Montana National $20 blue seal plain back
First National Bank of Lewistown 1902 $20 Blue Seal plain back. I have had this note for many years. It is in tough shape. I can find no auction results for a value. With the stains and missing corner my guess is it G4 at best. Should I have it certified and graded or is that just a waste of time and money? I am finally thinking of selling it. I forgot I had it until I was digging through a desk drawer.