O.k. almost got me with the "1751 to 1951 Nickel" I was going to ask to see the 1751 nickel. What you are referring to is the Second nickel in the first row which is a 1751-1951 commemorative Nickel that was minted in 1951. It does not have a tradition beaver back but instead has a Nickel Factory. Nice set, and the price is right. Best of luck with you auction