Búfalo five cent without date [gelöst]

Hi, someone can help me with this coin
5 five cent united states f America
Without date 5 g. mm 21.2
Is fake or Authentic

Yes, it is authentic but the year is gone.
You can use a acid (nic a date) to show it

The date no showing I think have not date

Because of the poor design of the buffalo Nickle and the date being placed on a high point on the obverse, the dates were very easily worn off during circulation. This is a very common occurrence with this coin type. It is referred to as a dateless Buffalo Nickel. There is even a place for it on the Numista page indicated by a ? . Yes, it is authentic but very common and it has no real value.

Thank you so much for information