John Doubleday (restorer)

John Doubleday (about 1798 – 25January 1856) was a British craftsperson, restorer, and dealer in antiquities who was employed by the British Museum for the last 20 years of his life. He undertook several duties for the museum, not least as a witness in criminal trials, but was primarily their specialist restorer, perhaps the first person to hold the position. He is best known for his 1845 restoration of the severely-damaged Roman Portland Vase, an accomplishment that places him at the forefront of his profession at the time.

While at the British Museum, Doubleday also dealt in copies of coins, medals, and ancient seals. His casts in coloured sulphur and in white metal of works in both national and private collections, allowed smaller collections to hold copies at a fraction of the price that the originals would command. Thousands of his copies entered the collections of institutions and individuals. Yet the accuracy he achieved led to confusion with the originals; after his death he was labelled a forger, but with the caveat that "[w]hether he did copies with the intention of deceiving collectors or not is open to doubt".

Little is known about Doubleday's upbringing or personal life. Several sources describe him as an American, including the 1851 United Kingdom census, which records him as a New York-born British subject. An obituary noted that he worked at a printer's shop for more than 20 years during his youth, which gave him the experience of casting type that he would employ in his later career as a copyist. Doubleday's early life, family, and education are otherwise unknown. He died in 1856, leaving a wife and five daughters, all English; the eldest child was born around 1833.

At the British Museum
From 1836 to 1856 Doubleday worked in the Department of Antiquities at the British Museum. He appears to have been employed as a freelancer who also occasionally acted as an agent in sales to the museum. At times he presented the museum with items including coins, medals, and Egyptian objects. Among other donations, his 1830 gift of 2,433 casts of medieval seals was the only significant donation recorded by the museum that year, he offered several coins and another 750 casts the following year, and in 1836, he presented the museum with a Henry Corbould lithograph of himself. A further presentation in 1837 was still considered, in 1996, to be one of the museum's most important collections of casts of seals. He seems to have been the museum's primary, and perhaps its first, dedicated restorer; his death was described as leaving the post vacant. At his death, it was noted that he was "chiefly employed in the reparation of innumerable works of art, which could not have been intrusted to more skilful or more patient hands", and that he "was well known as one of the most valuable servants of that department".

Portland Vase
The highlight of Doubleday's career came after 7 February 1845 when a young man, who later admitted having spent the prior week "indulging in intemperance", smashed the Portland Vase, an example of Roman cameo glass and among the most famous glass items in the world, into hundreds of pieces. After his selection for the restoration, Doubleday commissioned a watercolour painting of the fragments by Thomas H. Shepherd. No account of his restoration survives, but on 1 May he discussed it in front of the Society of Antiquaries of London, and by 10 September he had glued the vase whole again. Only 37 small splinters, most from the interior or thickness of the vase, were left out; the cameo base disc, which was found to be a modern replacement, was set aside for separate display. A new base disc of plain glass, with a polished exterior and matte interior, was diamond-engraved "Broke Feby 7th 1845 Restored Sept 10th 1845 By John Doubleday". The British Museum awarded Doubleday an additional £25 for his work.

At the time the restoration was termed "masterly" and Doubleday was lauded by The Gentleman's Magazine for demonstrating "skilful ingenuity" and "cleverness ... sufficient to establish his immortality as the prince of restorers". In 2006 William Andrew Oddy, a former keeper of conservation at the museum, noted that the achievement "must rank him in the forefront of the craftsmen-restorers of his time." Doubleday's restoration would remain for more than 100 years until the adhesive grew increasingly discoloured. The vase was next restored by J. W. R. Axtell in 1948–1949, and then by Nigel Williams in 1988–1989.

Other works
Beyond his work on the Portland Vase, several other of Doubleday's responsibilities at the British Museum have been recorded. In 1851 he successfully undid damaging restoration work by William Thomas Brande of the Royal Mint, who in using acid to clean bronze bowls from Nimrud had caused extreme oxidation. Doubleday's method, described at the time only as "a very simple process and without employing acids", is unknown, but may have used warm water with soap.

Doubleday was again called upon when, between 1850 and 1855, the museum received clay tablets from excavations in Babylonia and Assyria. Some were poorly packaged and had developed crystalline deposits rendering the writing illegible. Under the direction of Samuel Birch, then the keeper of the Department of Oriental Antiquities, Doubleday attempted to remove the deposits. The results were described by E. A. Wallis Budge, former keeper of Egyptian and Assyrian antiquities at the museum, as "disastrous", but by modern reasoning as "prescient", for though unsuccessful, the underlying methods were subsequently refined by others. Doubleday first attempted to harden the tablets by firing them, but this resulted in the flaking of the surfaces, destroying the inscriptions. His second attempt, submerging the tablets in solutions, also resulted in disintegration, at which point Birch suspended the efforts entirely. Later attempts by other conservators in firing similar tablets were more successful; mainstream acceptance today is more tempered by concerns about reversibility than by concerns about efficacy. Doubleday is regarded as the inventor of this method, and his failures may have been caused by raising or lowering the temperature too quickly.

Doubleday twice served as a witness in criminal matters. In 1841 he testified about his analysis of a gold medal during a trial concerning its theft. Eight years later Doubleday again testified, in March and April 1849, in a matter concerning the theft of coins from the museum. Early in February, Timolean Vlasto, a fashionable twenty-four-year-old from Vienna whose late father, Count Vlasto, had been a diplomat, had been introduced to Charles Newton (later Sir Charles) by a friend, who described Vlasto as a person interested in coins. Vlasto was given unfettered access to the museum's collection. Suspicions were aroused on 24 March, and on Monday the 26th a label was found on the floor; the coin that it described was missing. Upon inspection many more coins could not be found, but some were recovered when a search warrant for Vlasto's lodgings was obtained on Thursday. Doubleday was called to testify on Thursday or Friday; he stated that some of the coins exactly matched sulphur casts which he had made before the theft, and that the market value was between £3,000 and £4,000. Vlasto, who was remanded without bail, claimed that the majority of the coins discovered were not the museum's. On 17 April Doubleday again testified, identifying two more coins as belonging to the museum. In early May Vlasto pleaded guilty to the theft of 266 coins from the museum, valued at £500, and another 71, valued at £150, from the house of General Charles Richard Fox. Vlasto's lawyer termed him a monomaniac who was only interested in collecting, not selling. The pleas met little sympathy. Vlasto was sentenced by the Central Criminal Court to seven years transportation to Australia, and in early 1851 was placed on board the Lady Kennaway for the journey.

As a dealer
Apart from his work at the British Museum, Doubleday was a dealer and a copyist of coins, medals, and ancient seals. He sold sulphur and white metal casts, the former coloured in different hues, at his establishment, which, located near the British Museum, may have helped facilitate his employment there. He also sold curiosities, such as cabinets, snuff boxes, and lead seals purportedly made from materials taken from the charred ruins of the Palace of Westminster with the consent of the Commissioners of Woods and Forests, and pieces of wood said to be from a tree planted by Shakespeare. In 1835 Doubleday advertised for sale copies of 6000 Greek coins, 2050 bronze, 1000 silver, and 500 gold Roman coins, and 300 Roman medallions, in addition to other antiquities and what Doubleday termed "the most extensive Collection of Casts in Sulphur of ancient seals ever formed". By 1851 he had casts of more than 10,000 seals, and at his death it was said that he "possessed the largest collection of casts of seals in England, probably in the world." This comprehensiveness led to his contribution to the 1848 Monumenta Historica Britannica of a descriptive catalogue of Roman coins relating to Britain. More unique pieces he sometimes exhibited, either himself or by loan to Sir Henry Ellis, to the Society of Antiquaries of London. Doubleday's casts came from a range of places; on good terms with a variety of institutions and collectors, he was permitted to take casts at will from the collections of the British Museum and the Bibliothèque nationale in Paris.

Doubleday's casts were inexpensive, and sold widely. He was well known among collectors, and also sold to lyceums; University College London filled out their collection with his casts, finding them cost-effective substitutes for study. This same appearance of realism saw some of Doubleday's copies passed off as real. Doubleday was cast as a forger in Leonard Forrer's 1904 Biographical Dictionary of Medallists, though with the caveat that "[w]hether he did copies with the intention of deceiving collectors or not is open to doubt".

Personal life
Little is known about Doubleday's personal life, and nothing about his upbringing or education. An 1859 edition of The English Cyclopædia described him as American, and the 1851 census as a New York-born "artist" who was nonetheless a British subject, married to one Elizabeth and father of five daughters, all Londoners. His eldest daughter, also an Elizabeth, was born around 1833, suggesting that Doubleday and his wife had married by then.

Doubleday worked at a printer's shop in his youth for more than 20 years, according to his obituary in The Athenæum, giving him experience through making type in the casting of metal and other materials. Subsequently, he began copying medals, ancient seals, and coins, occasionally devising new methods of doing so; he also prepared castings for the Royal Mint, and become a founding member of the Royal Numismatic Society. By 1832 he was listed in directories under the heading "Curiosity, shell & picture dealers", and as a dealer in ancient seals. As well as his work at the British Museum, he may have been a collector.

According to the obituary in The Athenæum, Doubleday died "after a long illness" on 25 January 1856, "in the fifty-seventh year of his age". The illness was termed "extreme" by colleagues, such that he was unreachable for months. Obituaries were published in The Athenæum and The Gentleman's Magazine, and he was buried in Kensal Green Cemetery. His will was made only six days before his death. His entire estate was left to Elizabeth Bewsey, the daughter of a deceased bookkeeper; she was apparently not the Elizabeth to whom Doubleday was married, making it a bequest that seemingly left nothing for his wife or daughters. His library was sold by Sotheby's that April. The 322 lots combined to fetch £228 2s6d.