No month or day. The first 3-cent nickel coins were introduced in 1865.
1866 was the first year for a Nickel, please look at the coin again
It's a 2 cent piece not a 2 penny coin:The 1864 2 cent piece has values of $35.00- $80.00 in average circulated condition
All Indian Head cents minted from mid-1864 to the end of the series in 1909 were struck in bronze, not copper-nickel. Copper-nickel was only used for Indian Head cents minted from 1859 to mid-1864. There's more information at the Related Question.
Answerapirl 1864
Nevada became the 36th state on October 31, 1864.
The 1863 Indian Head cent is still the copper-nickel composition (.880 copper & .120 nickel) 1864 is the year they were first struck in bronze.
November 1860 - and then again in November 1864.
Alice Williamson began her diary in the winter (February, 1864).
From 1859 through part of 1864, the Indian Head cent was composed of 88% copper and 12% nickel. From the remainder of 1864 to 1909 it was composed of 95% copper and 5% tin and zinc.
127,381
A private in the Union army was paid $13 per month. That was raised to $16 in 1864 due to inflation. A private in the Confederate army was paid $11 per month, raised to $18 per month in 1864 (however by then the money was pretty much valueless anyway)
The first US nickels were minted in 1866. Please check your coin again and post a new question.