The First Art Newspaper on the Net   Established in 1996 United States Friday, November 27, 2015

Kunsthaus Zurich restores French artist Antoine Bourdelle's bronze sculpture 'Sappho'
Section of the face after wax conservation. Photo © Kunsthaus Zürich.
ZURICH.- The bronze sculpture ‘Sappho’ by the French artist Antoine Bourdelle (1861-1929) is currently undergoing extensive restoration at the Kunsthaus Zürich. A collection presentation is planned for 2014.

Along with Auguste Rodin and Aristide Maillol, Antoine Bourdelle formed the triumvirate of early modern French sculptors. Originally from south-western France, Bourdelle found worldwide recognition during his lifetime. His output ranged from intimate, small-scale works to large public commissions in a variety of formats. His main focus was on depicting the animated and powerful human figure down to the smallest details, often in mythological contexts. The three important bronzes held by the Kunsthaus Zürich also fall into this category: ‘Apollon (Masque)’ from 1900, a representation of the face of Apollo, the Greek god of music and poetry; ‘Beethoven’ from 1902, a bust of the famous composer – and ‘Sappho’ from 1887/1925.

Bourdelle’s ‘Sappho’ is a monumental representation of the greatest female poet of antiquity (late 7th to early 6th century BC). She is shown with a large lyre, crouching on a small rocky elevation. The whole figure is filled with tension, from the raised big toe of the right foot, to the right hand, which is held aloft; and that tension also manifests itself in the folds of her dress. Sappho has her head bowed. Her right hand, raised above her head, mirrors the form of the musical instrument. Perhaps the poet is deep in thought, counting the metre of a poem. Sappho’s main subject is love – and her admiration for the goddess of love Aphrodite.

Bourdelle worked on his Sappho composition several times. He completed his first version, which was just 28 cm in height, in 1887. In 1924 he finished a 70-cm bronze sculpture, followed a year later by the monumental bronze work, of which seven castings exist. The larger than life-size example from 1925 in the Kunsthaus has the typical appearance of a bronze that has been exhibited outdoors for many years, with conspicuously green and black areas. They are the products of copper corrosion, predominantly alkaline copper sulphates and accretions of dirt. The green corrosion products – in the form of coarse and fine crystals and in some cases a powder – have little adhesion to the underlying material. The black particles, by contrast, are smooth and firmly impacted in the surface. They occur in patches dotted over the underlying green. On close examination, it is evident that the surface has a number of levels. The light green corrosion products, sometimes shading into blue, are somewhat deeper – a sign that the surface has already lost layer thickness. In the urban environment, moisture combines with the atmosphere to form acidic solutions which prevent the build-up of a compact, passivating layer. It is therefore no surprise that deep streaks have formed on the surface over the decades.

Once the quality of the surface had been analysed, careful wet cleaning was carried out to remove loose dirt, using plastic brushes and water with the addition of a mild, non-ionic surfactant. Wetting the surface with water creates an impression of depth that conveys a clearer picture of the surface than when it is dry. This revealed that the brown deposits were remnants of a ground coat or paint layer, since brushstrokes can clearly be seen. The remains of shiny gold areas could also be made out on this layer, resulting from earlier decoration. Unresolved questions concerning this surface phenomenon were answered using samples that were analysed by the Swiss Institute for Art Research. Following preliminary tests and cleaning with soft brushes, the sculpture was then cleaned using hot steam and gentle pressure, which facilitated the removal of firmly adhering dirt particles and airborne pollutants from the surface. In certain places, such as undercuts, thicker and harder encrustations of sinter and dirt had formed. The only solution was to reduce these mechanically, working carefully with a scalpel to even out the differences of surface level. In all, though, only a few surfaces were treated in this way. The areas of green corrosion were not treated mechanically during the surface cleaning, as these are already below the original surface level.

Accordingly, and also for aesthetic reasons, the surface was subjected to conservation with wax. This provides lasting protection against weathering and vandalism, but also enables a stable, self-healing and protective bronze surface to ‘regenerate.’ The wax used was the microcrystalline Cosmoloid H 80, which has a high melting range. It is dissolved in white spirit and applied, allowing it to melt into the surface while hot. This offers long-term protection but requires regular maintenance.

Following the conservation overseen by Hanspeter Marty, Patrick Decker will carry out partial retouching limited to isolated, particularly unsightly areas to restore the surface to something closer to its original appearance and enhance the visual readability of the artistic form by emphasizing certain characteristics. As with every step, this will be carried out in close, interdisciplinary coordination with collection curator Philippe Büttner. The restoration is expected to be complete by the end of 2013. From 21 March to 22 June 2014 the Kunsthaus will then be staging an exhibition of the Bourdelle sculptures from its collection. This will be accompanied by detailed information about the artist, his work and the latest developments in the restoration. A report on some of the measures taken can already be seen at under The Collection > Conservation.

Today's News

August 22, 2013

"The Appearance: Shine, Glamour, Illusion" opens at the Kestnergesellschaft in Hanover

Kunsthaus Zurich restores French artist Antoine Bourdelle's bronze sculpture 'Sappho'

Stolen 16th century "astronomical computer" returned to Skokloster Castle near Stockholm

Victoria & Albert Museum acquires the archive of British film and theatre actress Vivien Leigh

Graphic masterworks: 100 years of influential poster design offered at Christie's

Berlin to build museum for 20th century masterpieces donated by Ulla and Heiner Pietzsch

Spanish artist Cecilia Gimenez to share riches from botched restoration of a painting of Christ

Into the West: The Annenberg Commission by Thomas Molesworth to be offered at Christie's

Pink makeover for Warsaw Pact invasion of Czechoslovakia monument in Bulgaria

Substantial donation from Art & Project/Depot VBVR Collection to the Kröller-Müller Museum

'King of Coins' 1804 Silver Dollar sells for more than $3.8 million at Heritage Auctions

Ketterer Kunst in Berlin-Charlottenburg to show a selection of graphic works by Arnulf Rainer

Property from the Estate of Phyllis Diller-The First Lady of Comedy to go to auction

Rare Wemyss sleeping pig fetches £10,000 at auction

Summer Collective Part II exhibition opens at Bertrand Delacroix Gallery

Dallas Museum of Art appoints Kimberly L. Jones as Assistant Curator

Exhibition of works by Alexis Hunter and Jo Spence opens at Richard Saltoun Gallery

Crystal Bridges welcomes new Executive Chef and Membership Manager

Eritrea's unique architecture under threat

ICA Art Rules launches live to the public

Most Popular Last Seven Days

1.- First solo exhibition by the American artist Mickalene Thomas in Belgium opens at Galerie Nathalie Obadia

2.- Israel accidentally finds ancient mosaic that served as pavement for a courtyard in a villa

3.- The address of Johannes Vermeer's the Little Street discovered by Rijksmuseum curator

4.- The nine lives of Russia's Hermitage cats that root out unwanted guests: Rodents

5.- Robbers make off with masterpieces by Rubens and Tintoretto from museum in Verona

6.- 17th century letters at Museum of Communication reveal refugees 'sense of loss'

7.- New museum dedicated to the artist Mu Xin opens in Zhejiang Province, China

8.- Who are the most prolific art collectors in the US today?

9.- Rubens House brings newly discovered study for a portrait by Van Dyck to Antwerp

10.- "The Nude in the XX and XXI century" curated by Jane Neal opens at Sotheby's S/2 London

Museums, Exhibits, Artists, Milestones, Digital Art, Architecture, Photography,
Photographers, Special Photos, Special Reports, Featured Stories, Auctions, Art Fairs,
Anecdotes, Art Quiz, Education, Mythology, 3D Images, Last Week, .


Ignacio Villarreal
Editor & Publisher:Jose Villarreal - Consultant: Ignacio Villarreal Jr.
Art Director: Juan José Sepúlveda Ramírez
Social Network Manager and Translator: Norma Cristina Pérez Ayala Cano

Royalville Communications, Inc
Founder's Site. The most varied versions
of this beautiful prayer.
to a Mexican poet.

The First Art Newspaper on the Net. The Best Versions Of Ave Maria Song Junco de la Vega Site Ignacio Villarreal Site
Tell a Friend
Dear User, please complete the form below in order to recommend the Artdaily newsletter to someone you know.
Please complete all fields marked *.
Sending Mail
Sending Successful