The red seal note has some unique features that distinguish it from regular $100 bills. The most notable feature is the large red seal on the reverse side of the note, which bears the date "1789-1969." The red seal is placed over the regular Treasury seal and is printed in red ink.
Additionally, the red seal note has a slightly different design compared to regular $100 bills. The border around the portrait of Benjamin Franklin is slightly thicker, and the words "ONE HUNDRED DOLLARS" are printed in a different font.
The red seal note was issued in limited quantities, making it a somewhat rare and collectible item. As a result, its value can vary depending on its condition and rarity. In general, a well-preserved red seal note can be worth several hundred to thousands of dollars.
It's important to note that the value of any currency, including the red seal $100 note, can fluctuate over time due to various factors such as market demand, supply, and economic conditions.