This Feb. 26, 2013 file photo shows gold Mexican 50-peso pieces that once belonged to Walter Samaszko, Jr. that were up for auction in Carson City, Nev.
This Feb. 26, 2013 file photo shows gold Mexican 50-peso pieces that once belonged to Walter Samaszko, Jr. that were up for auction in Carson City, Nev. (Cathleen Allison, Las Vegas Review-Journal/AP)