###Answer the question from the input provided. Please answer from input only.

###Input: Well represented in the collection is Meissen porcelain, from the first factory in Europe to discover the Chinese method of making porcelain. Among the finest examples are the Meissen Vulture from 1731 and the Möllendorff Dinner Service, designed in 1762 by Frederick II the Great. Ceramics from the Manufacture nationale de Sèvres are extensive, especially from the 18th and 19th centuries. The collection of 18th-century British porcelain is the largest and finest in the world. Examples from every factory are represented, the collections of Chelsea porcelain and Worcester Porcelain being especially fine. All the major 19th-century British factories are also represented. A major boost to the collections was the Salting Bequest made in 1909, which enriched the museum's stock of Chinese and Japanese ceramics. This bequest forms part of the finest collection of East Asian pottery and porcelain in the world, including Kakiemon ware.

Many famous potters, such as Josiah Wedgwood, William De Morgan and Bernard Leach as well as Mintons & Royal Doulton are represented in the collection. There is an extensive collection of Delftware produced in both Britain and Holland, which includes a circa 1695 flower pyramid over a metre in height. Bernard Palissy has several examples of his work in the collection including dishes, jugs and candlesticks. The largest objects in the collection are a series of elaborately ornamented ceramic stoves from the 16th and 17th centuries, made in Germany and Switzerland. There is an unrivalled collection of Italian maiolica and lustreware from Spain. The collection of Iznik pottery from Turkey is the largest in the world.

The glass collection covers 4000 years of glass making, and has over 6000 items from Africa, Britain, Europe, America and Asia. The earliest glassware on display comes from Ancient Egypt and continues through the Ancient Roman, Medieval, Renaissance covering areas such as Venetian glass and Bohemian glass and more recent periods, including Art Nouveau glass by Louis Comfort Tiffany and Émile Gallé, the Art Deco style is represented by several examples by René Lalique. There are many examples of crystal chandeliers both English, displayed in the British galleries and foreign for example Venetian (attributed to Giuseppe Briati) dated c1750 are in the collection. The stained glass collection is possibly the finest in the world, covering the medieval to modern periods, and covering Europe as well as Britain. Several examples of English 16th-century heraldic glass is displayed in the British Galleries. Many well-known designers of stained glass are represented in the collection including, from the 19th century: Dante Gabriel Rossetti, Edward Burne-Jones and William Morris. There is also an example of Frank Lloyd Wright's work in the collection. 20th-century designers include Harry Clarke, John Piper, Patrick Reyntiens, Veronica Whall and Brian Clarke.

The main gallery was redesigned in 1994, the glass balustrade on the staircase and mezzanine are the work of Danny Lane, the gallery covering contemporary glass opened in 2004 and the sacred silver and stained-glass gallery in 2005. In this latter gallery stained glass is displayed alongside silverware starting in the 12th century and continuing to the present. Some of the most outstanding stained glass, dated 1243–48 comes from the Sainte-Chapelle, is displayed along with other examples in the new Medieval & Renaissance galleries. The important 13th-century glass beaker known as the Luck of Edenhall is also displayed in these galleries. Examples of British stained glass are displayed in the British Galleries. One of the most spectacular items in the collection is the chandelier by Dale Chihuly in the rotunda at the Museum's main entrance.

The collection of drawings includes over 10,000 British and 2,000 old master works, including works by: Dürer, Giovanni Benedetto Castiglione, Bernardo Buontalenti, Rembrandt, Antonio Verrio, Paul Sandby, John Russell, Angelica Kauffman, John Flaxman, Hugh Douglas Hamilton, Thomas Rowlandson, William Kilburn, Thomas Girtin, Jean Auguste Dominique Ingres, David Wilkie, John Martin, Samuel Palmer, Sir Edwin Henry Landseer, Lord Frederic Leighton, Sir Samuel Luke Fildes and Aubrey Beardsley. Modern British artists represented in the collection include: Paul Nash, Percy Wyndham Lewis, Eric Gill, Stanley Spencer, John Piper, Graham Sutherland, Lucian Freud and David Hockney.



###Question: How many years does the V&A glass collection cover?

###Answer: {'answer':'4000'}