US

These two posters which will be offered for sale by Swann Auction Galleries in New York on August 7 illustrate the convoluted history of the Olympic Games during the Second World War era.

The marathon 12-hour 'Maharajas & Mughal Magnificence' auction of jewellery and works of art from the Al Thani family held in New York last month was a once-in-a-generation event.

Thousands of items are available to buy from dealers online. Here we pick out one that caught our eye this week.

This pair of c.1970s Italian Onda (Wave) lounge chairs in chrome and leather designed by Giovanni Offredi for Saporiti Italia will feature in the Downtown Los Angeles Collections and Estates auction to be held on Sunday, July 28, by the Andrew Jones auction house.

This poster for Alfred Hitchcock’s The 39 Steps is one of the rarer entries in Heritage Auctions’ July 27-28 sale of posters to be held in Dallas.

Jackson’s of Cedar Falls, Iowa, has a reputation for selling Russian works of art. Its sale on July 30 will include 19 lots from the collection of William Garner Welbon (1866-1960) that have remained with his family.

Top lot in a June 6 sale of maps, natural history and other colour plate books held in New York was a rare map by Lewis Evans of what were then still the ‘Middle British Colonies’ in America.

The Hammerhead shark plate shown below is not as colourful as many of the other 432 featured in a generally fine and complete copy of Marcus Elieser Bloch’s Ichthyologie… sold recently, but certainly one of the more eye-catching.

Works produced in the 1940s by Al Hirschfeld figured prominently among the higher priced lots at a June 4 Illustration Art sale held in New York.

Christie’s marathon 12-hour auction of Indian jewellery and works of art from the Al Thani family held in New York included the finest collection of courtly weapons to come to auction in well over a generation.

Published in Venice in November 1494, a copy of Luca Pacioli’s 'Summa de arithmetica, geometria, proporzioni et proporzionalità…' offered in a recent US sale was granted the rare privilege in the book auction world of having a catalogue all of its own.

A rare signed ink and gouache image in which Tintin carves a makeshift propellor to replace that damaged by a forced landing of his aeroplane in the Soviet Union sold for $900,000 (£708,660) in a June 8-9 sale of European comic artworks held in the US.

Morphy Auctions’ latest Fine & Decorative Arts sale held in Denver, Pennsylvania included this unusual 7½in (19cm) Russian silver-mounted pottery vase.

The offer price from Patrick Drahi represents a premium of 61% to Sotheby’s closing price on June 14 and a 56.3% premium to the company’s 30-day average share price.

Art market insiders are expecting a dramatic change in the dynamic at the top end of the sector if a remarkable $3.7bn bid to buy Sotheby’s completes this year.

Uncut and partially unopened, a truly exceptional presentation copy of Charles Darwin’s On the Origin of Species… sold for a record $400,000 (£316,353) in a recent US sale.

The first American flag believed to have been planted on Omaha Beach in northern France on D-Day proved to be the top lot in Heritage’s (25% buyer’s premium) Arms & Armor, Civil War & Militaria Auction on June 9.