Hi there!
I am here to learn.
From what I saw from looking at several pictures online, this is a 1854 Plain Trident Penny.
I refrained from bidding on it because of the position of the colon that follows the R on the reverse. Pictures of certified coins I have found online lead me to think it is too low on this example. Moreover, I have found images of fakes where the colon is low too.
Looking for experts to chime in!