Nielsenc 2006
California geocacher nielsenc's 2006 St. Patrick's Day four-leaf clover geocoin. There does not seem to be any record of this geocoin on the geocoin forum, but from cointracking.com I have determined that the regular edition was polished gold, this polished silver version is the LE edition, and there was also an XLE in black nickel.
Size: 46 x 43 mm