Photoshop designed Proof $500 - National Charter Currency Proof page scanned from original 8-1/2"" X 11" Nice For Framing or add to your collection. The Mechanics National Bank of Boston Massachusetts Charter #743 Certified Proofs Courtesy The National Museum of American History NO DOWNLOADING WILL BE REMOVED FROM PHOTO WHEN PRINTED AND MAILED. Wondering if I have  proof notes of your hometown bank  If the bank was in business during the period 1863 through 1929 there's a good chance I have something just ask!!