19 PC. UNITED STATES MINT PROOF SETS: Comprising; 2- 2007 American Legacy Collections, 2007 Silver proof sets, 3- 2011 Silver proof sets, 3*- 2010 Quarters Silver proof sets, 1- 1999 Silver proof set, 1- 1968 proof set1- 1989 proof set, 2- 1995 Uncirculated proof sets.