C is the highest series letter on a 1953 US $2 bill. The series letter, if any, is next to the date.Please see the Related Question for more information.
If it has a small letter A, B, or C next to the date, face value to $9 depending on wear. If there's no letter next to the date, its value could be up to $12 at retail.
No. "D" is the highest series letter for 1934 US $50s. You may be referring to the Federal Reserve District letter. The series letter, if any, on US bills is next to the date.
For bills with no series letter next to the date, or A through D, face value to $140 depending on how worn it is. For bills with an E series letter, $140 to $200.
Please post a new question with the bill's denomination and what letter if any is next to the date.
why would the letter I be the next letter in the sequence: C A R R
A
Y
CARRY
y
y
It looks as if every third letter is an "r"; the remaining letters are in sequence.
s
In the alphabet the letter that comes after Q is the letter R. The letter that comes before Q would be P.
S
o
TD,r