Oxford Authentication® has been leading the field in authenticating pottery, ceramics, porcelain, stoneware and bronze since 1997. Its founding director, Doreen Stoneham, has been conducting authenticity tests since 1970.   Our clients include many major museums, international foundations, private collectors, auction houses such as Christie’s, Bonhams and Sotherby’s and antique dealers all over the world.   We work to the international quality assurance standard ISO 9001:2000.




A director of Oxford Authentication® Ltd, Doreen Stoneham has been conducting authenticity tests since 1970, originally with the Research Laboratory for Archaeology at Oxford University, which pioneered the TL testing process. It was there, in the early 1980s, that Doreen perfected the technique for the safe and reliable testing of porcelain.

Doreen has published a number of papers and articles on subjects ranging from authenticity testing to scientific research on thermoluminescence, as well as making radio and television appearances and lecturing extensively. She has also been called as an expert witness in courts of justice in both the UK and US. In 2008 Doreen was awarded the Gabor Medal and Prize by the Institute of Physics for her distinguished work in the application of physics in an industrial, commercial or business context.

Doreen graduated from Bristol University in Physics.