Large Size-Federal Reserve Notes
Large Size Federal Reserve Notes (FRNs) were issued under the Federal Reserve Act, Dec. 23, 1913. All denominations from $1 to $10,000 were issued to all 12 Federal Reserve Banks.
The first series was the issue of 1914 and was issued with Red Seal and Blue Seals. They were issued in denominations of $5, $10, $20, $50 and $100. The Red Seals are a lot more valuable than the Blue seals.
The second issue was the series of 1918. It featured a Blue Seal and was in denominations of $500, $1,000, $5,000 and $10,000.
$500 bears a portrait of John Marshall
$1,000 bears portrait of Alexander Hamilton
$5,000 bears a portrait of our 4th President James Madison. (8 are known)
$10,000 bears a portrait of Salmon Portland Chase. (4 are known)
The main difference of the Federal Reserve Notes was that the obligation to pay the bearer was borne by the United States Treasurer, not the individual banks. Whereas the Federal Reserve Bank Notes was obligated to pay the bearer on its notes, not the US Government.