I had never dug one before yesterday ... cross this one off my list ... 1920 D Buffalo Nickel. Found at old park dating back to the 1890s that I had been to lots of time ... never hunted out.
Nothing Listed in my 2018 Mega Red Coin Book,especially for Nickels over 600 pages just for Nickels . But does you coin look like the rear leg might has a shadow of another leg also behind it . Does the letters five cent also show some doubling-goldnugget