In my professional opinion, the following item is:

2011-S 14-COIN U.S. PROOF SET.  First Day of Issue.  Certified by ANACS (set #10 of 187) all Certified with a perfect grade score of PR70 Deep Cameo.   

All in a very nice wood display box.  If your pursuit is perfection, here it is.

Dimes, Quarters & Half Dollars are in 90% Silver.  Balance of the coins are regular copper-nickel.

Thank you,

Karl Anderson

Anderson Stamp & Coin

POB 51258, Provo, Utah 84605

APS #130744.  I am a full-time stamp and coin dealer; and a regular advertiser in Linn's Stamp News and Coin World Publications (since 1975).