What is the value of a 1.00 bill dated 1928?

In circulated condition .... If it says SILVER CERTIFICATE on it, its value depends on what letter if any is next to the date: No letter : $10.-$20. A, B : $5.-$10. C : $20.-$125. D : $20.-$55. E : $200.-$500.+ LEGAL TENDER notes are worth $50 to $100