Jessica Rinaldi / Reuters

A photo of former U.S. President with his children John Jr. and Caroline in costumes taken on Oct. 31, 1963 is displayed among other items as part of the McInnis Auctioneers Presidential Auction in Amesbury, Mass. Feb. 10, 2013.

The items to be auctioned are part of the estate of David F. Powers, who was a close friend as well as Special Assistant to former President John F. Kennedy. Powers traveled with Kennedy from the beginning of his political career through the president's assassination in 1963. Powers became the first curator of the JFK Library, where he served until he retired from the position in 1994. Powers' family discovered the pieces as they prepared the family home for sale.

See the auction catalogue presented by John McInnis Auctioneers.

Jessica Rinaldi / Reuters

A letter to former U.S. President John F. Kennedy from his mother

Jessica Rinaldi / Reuters

Photos of Jacqueline Kennedy Onassis taken in 1955

Jessica Rinaldi / Reuters

Photos of former U.S. President John F. Kennedy and his wife Jacqueline Kennedy Onassis

Tim Wimborne / Reuters

A potential bidder views a foal at the Magic Millions sales complex on Australia's Gold Coast during an auction of Broodmares from Patinack Farm, the horse racing stud owned by mining magnate Nathan Tinkler, on October 30, 2012.

Martyn Rushby / Handout via Reuters, file

Nathan Tinkler's rise from obscure electrician to mining magnate, sports club owner and champion of a rejuvenated Australian industrial town could be unravelling.

Reuters reports — With a cry of "cheap as old boots" from the auctioneer, the hammer came down at A$5,000 ($5,200) on the first broodmare to open a three-day auction of 350 horses from the stables of faltering mining magnate Nathan Tinkler.

Tinkler's rise from pit electrician to Australia's youngest billionaire has hit a hurdle, with creditors circling his stable of mining, sports and racing businesses, and he is raising funds with the out-of-season sale that began on Tuesday.

His 19.4 percent stake in Australia's biggest independent coal miner Whitehaven Coal, which represents the bulk of his wealth, is heavily leveraged and has shrunk considerably in line with falling coal prices. Read the full story.

Tim Wimborne / Reuters

An auctioneer at the Magic Millions sales complex on Australia's Gold Coast brings his hammer down during an auction of Broodmares from Patinack Farm on October 30, 2012.

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Jim Cole / AP

A 1947 Ford Super Deluxe Sportsman Convertable is ready for auction along with neon signs.

Jim Cole / AP

The hood ornament on the front of a 1934 Ford Deluxe Paaeton which will be auctioned off ths weekend.

About 50 vintage cars, many from the 1930s and '40s, and neon signs, and other items from a bygone era are up for auction this weekend. The items are from investor and philanthropist Michael Dingman, the former Ford Motor Co. director. In addition to a rare 1936 Ford custom Cabriolet by Glaser, a 1934 Ford Deluxe Phaeton and a Aston Martin Vantage Volante, is a series of Route 66 signs. The preview for the auction is today in Hampton, N.H.

More about the auction and Dingman's collection.

The auction website - RM Auctions, where you can bid or just watch it live.

Christopher Furlong / Getty Images

A sheepdog works in the auction ring as buyers look on at Skipton Auction Mart in Yorkshire, England on Friday, May 18.

Christopher Furlong / Getty Images

A sheepdog watches another dog in the auction ring as it waits its turn to be auctioned at Skipton Auction Mart.

Christopher Furlong / Getty Images

Potential buyers inspect a red and white collie puppy sheepdog before it is auctioned at Skipton Auction Mart.

Craven Cattle Marts in the Yorkshire Dales, England are world renowned for their sheepdog auctions with buyers bidding for some of the country's best bred border collies. In 2010 a world record price of $8,146 (5145 GBP) each was paid for two sheepdogs named Ron and Rex.

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Buyers watch a sheepdog round up sheep in the auction ring at Skipton Auction Mart.

Reuters

Reuters

Reuters

Reuters reports: NEW YORK — Decades after two young cartoonists from Cleveland sold the rights to Superman for $130, their 1938 paycheck fetched $160,000 on Monday in an online auction. The winning bid landed the check that Detective Comics, later known as DC Comics, wrote to Jerome Siegel and Joe Shuster for the comic-book character with the "S" emblazoned on his chest.

The check for the rights to the American icon who stands for truth, justice and the American way is "the holy grail" for comic book fans and collectors, Zurzolo said.

Anja Niedringhaus / AP

The 110.03 carats Sun-Drop Diamond.

AP reports:

GENEVA — The Sun-Drop Diamond of South Africa, a giant pear-shaped yellow gem weighing 110.3 carats, has sold for more than $10.9 million at auction Tuesday, beating previous records for a jewel of its type.

Including commission the unidentified telephone bidder paid almost $12.4 million for the gem, putting it within the $11 million to $15 million range Sotheby's had estimated before the sale. Read the full story.

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''Rhein II'', 1999 by Andreas Gursky

AP report:

NEW YORK — A 1999 photograph of the Rhine river by German artist Andreas Gursky has sold for $4.3 million in New York City, setting a record for any photograph sold at auction.

Titled "Rhein II," the chromogenic color print face-mounted to acrylic glass, had a pre-sale estimate of $2.5 million to $3.5 million.

It sold Tuesday at Christie's. The buyer was not disclosed.

The previous record for any photography sold at auction was Cindy Sherman's "Untitled," which fetched $3.8 million at Christie's in May.

Gursky's panoramic image of the Rhine is one of an edition of six photographs. Four are in major museums, including the Museum of Modern Art in New York and the Tate Modern in London.