57d -doubling

[rickybailey50]

thank you all for the help this is the last one i want to find out about i see a lot of this on the rev of the early dates like this first iv seen on the adv letters md?

[seal006]

This one looks like MD to me.

[pennies4pennies]

I see MD. See how it cuts into the letters.

[simonm]

I am seeing machine doubling as well.
And by the way, as long as the coin pictured is a cent, it does not have to go in off-topic. Rather, it can go in Q&A, Variety Attributions, Error Attributions, or General Discussion.