I've been at the bank for almost a year and half now and this is only the second buffalo nickel I've found. I think it's a 1919 D the best that I can tell. The date is worn off pretty good.
I found one at work, date worn completely off, back in November 2006. It is only the second I have gotten in change, the other is a 1926.
I can't believe some of those things are still out there... I guess the majority of the population just considers it "a nickel." Hm...