Buffalo Nickel No Date: Acid Restored Date Value
Many collectors will use nic-a-date, vinegar or other substances to restore the date to a Buffalo or even Liberty V Nickels. It is often poorly done so it is easy to see the acid etched area as darker or even lighter than the rest of the area.
Buffalo Nickel with a restored date is worth face value if it is a common date, but some will pay 10 cents for no date or restored date examples. However, the more rare the date and mint the it is worth but still have a reduced premium.
For example, A 1913-S Type 2 Buffalo Nickel is rare and with a restored date the value is reduced by 30%, but other dates and mints can be 50% or more.
Buffalo and Liberty Nickels with restored or nic-a-date treated are considered hole fillers regardless of their rarity.