article_snippet: The collection of 650 coins is expected to sell for $220million (£150million) in a record-breaking series of seven auctions at Sotherby's and Stack's Bowers Galleries.
article_snippet: Pictured heads (left) and tails (right)
article_snippet: A rare 1796 quarter dollar coin, shown heads (left) and tails (right), is expected to fetch up to $1million .
article_snippet: A rare 1796 quarter dollar coin, shown heads (left) and tails (right) is worth up to $1.75million.
article_snippet: These two coins in particular, we think, have a possibility of being up around that $10 million mark,' said Brian Kendrella, the president of Stack's Bowers Galleries.
article_snippet: The rare coin and currency auctioneer, which is handling the sales with Sotheby's, believes These two coins in particular could shatter the $10 million record set in 2013 for a 1794 Silver Dollar.
article_snippet: It is anticipated to sell for $1.5million (£1million).
article_snippet: A collection of 301 rare penny coins dating from 1793 to 1814, which he gathered over more than 13 years, sold in 2008 for $10.7 million - about double what he invested in it. '
article_snippet: Five Dollar gold piece (left), the only example in private hands, is anticipated to sell for up to $10million