International

The colour scheme and composition of 'Blauer Junge mit Sense' (Blue Boy with Scythe) appear almost psychedelic, but in fact the 4ft 8in x 6ft 8in (1.41 x 1.72cm) oil painting was executed in 1911.

At the beginning of the 20th century, Gustav Klimt was without doubt the most famous Austrian painter, and Josef Hoffmann the most renowned designer and architect.

Auction Technology Group (ATG), owner of Antiques Trade Gazette and online marketplaces including thesaleroom.com, has announced the proposed acquisition of LiveAuctioneers, a major art and antiques auction marketplace in North America.

'Hunters and Dogs in the Park at Silkwood House, 1886', is an oil on canvas by British equestrian painter Edward Benjamin Herberte (1857-93).

The opening lot in Hake’s June 29-30 auction Pennsylvania, is a 1767 promissory note hand-signed by a prominent Virginia slave owner – George Washington.

In 1820 the then US Secretary of State John Quincy Adams commissioned William J Stone to produce a facsimile of the original 'Declaration of Independence'.

Thomaston Place Auction Galleries in Maine kicks off its summer season with a three-day sale from July 9-11 and the return of live in-house bidding.

The Premier & Emporium Auctions at Brunk on July 9-10 include this large late Victorian silver tray with a shell and scroll border.

Our selection of potential stand-out lots in sales across Europe, plus a French tribal art fair

Richly illuminated manuscripts from a ‘truly exceptional collection’ shine in New York

Christie’s New York rooms is holding an online sale titled Treasures of a Storied Manhattan Collection open for bidding from June 15-July 1.

Doll specialist Theriault’s Summer Marquis auction will be conducted on July 10-11 in Annapolis, Maryland.

Included in the design sale to be held by Heritage in Dallas on July 15 is this walnut frame from c.1970 by George Nakashima (1905-90).

On July 15, Stair in Hudson, New York, will offer the collection of photographer Luigi Pellettieri.

Poster Auctions International holds a 500-lot auction that includes Art Nouveau, Art Deco, Modern, and Contemporary designs by a mix of designers.

Stanley Gibbons, the buyer of the world’s most expensive stamp at Sotheby’s New York last week, said it plans to “democratise” its ownership by inviting the public to buy shares in it.

A large 15th century altarpiece from a church in southern Belgium has been sold in Brussels for a six figure sum.