International

In his native Hungary, Károly Patkó (1895-1941) is a recognised name in early 20th century art.

René Lalique had already enjoyed a hugely successful career as a jewellery designer in the Art Nouveau taste before he ventured into glass manufacture and the Art Deco.

A world atlas produced by a Dublin-born man who is considered the first US commercial publisher made its way to the Irish capital to be sold at auction house Adam’s (25% buyer’s premium).

Marion Antique Auctions’ (23% buyer’s premium) May 4 sale included a 1913 yachting trophy made for the winner of the Eastern Yacht Club Cruise. That winner turned out to be Elena, a 136ft vessel owned by railroad baron Morton Plant (1852-1918).

A spectacular 19th century Steinway concert grand piano sold for $80,000 (£64,000) at Nadeau’s (23% buyer’s premium).

The Memphis Miliano design movement was born on the evening of December 11, 1980, when architect-designer Ettore Sottsass (1917-2007) invited young creators and architects to discuss the future of Italian ‘post-modern’ design.

Although the image may be familiar from stereoscopic photographs and engravings of the period, this view of the 1862 'London International Exhibition of Industry and Art' is an oil and canvas by the Italian painter Federico Moja (1802-85).

Stand-out lots from upcoming sales including Chardin still-life, Napoleonic marshal's baton and fine art collection acquired over decades

This wreath of helichrysum (immortelle or everlasting) flowers was apparently sent to Napoleon on St Helena as a token of support from two of his sympathisers in London.

Manuscript ‘sold in 1776’ at forerunner of Sotheby’s emerges in New York sale

Focus on first part of a series of porcelain sales offering businessman’s collection

Annual specialist extravaganza held in Paris involves galleries, auction houses and museums

Published between 1750-73, Plantae selectae quarum imagines ad exemplaria naturalia Londini in hortis curiosorum (‘A selection of plants from natural specimens nurtured in London’s curious gardens’) is considered the most important botanical work ever printed in Germany.