2012 s 4-piece Presidential proof set- no box or COA

Up for auction is this 4-piece 2012 s Presidential proof set. Coins will come encapsulated in the original government plastic as received by the US Mint. This year's presidents honored are:
Chester Arthur (1881-1885)
Grover Cleveland (1885-1889) FIRST TERM
Benjamin Harrison (1889-1893)
Grover Cleveland (1893-1897) SECOND TERM
There is no box or certificate of authenticity for this auction.