I am a brazilian and had the chance to deal with Nevada Coin. I was there to sell some gold coins and they paid me the best price I could fetch in Las Vegas. They are professional, courteous and trustworthy. Before visiting their premises I got a tentative appraisal by phone which I found reasonable. In the shop the attendant offered to approach the manager to get me a (gasp) BETTER price. Do yourself a favor and don’t bother talking to their rude and unprofessional competitors. They will treat you like a moron and quote prices accordingly. For Nevada Coin, five Stars all the way.
The United States coin proof set has been produced since 1936, and with just a few years off, it has been a mainstay for coin collectors young and old for generations. The United States coin proof set has evolved over the decades from a five coin proof set in a brown manila folder, where the coins in the coin proof set were packaged in a flimsy plastic sheet like holder, to recent releases containing three durable and beautifully crafted, hard plastic containers carrying up to 14 pieces as part of one entire coin proof set. Proof coins have been made for over a hundred years in the United States as a way to show off coins of the U.S. mints and the beauty in design and elegance of form these coins possess.