Helmut Ruhemann

He was instrumental both in the promotion and utilisation of x-rays as an art historical tool[1] and was progressive in his efforts to clean old master paintings in a faithful manner that did not impede on original brushstrokes or outlines.

He contributed to the progression of both art history and conservation through his making available his detailed notes and photographs.

[2] One of his most celebrated restorations is that of Rogier van der Weyden's Saint Luke Drawing the Virgin, a task he undertook with extreme caution, as it pitted him against Max J. Friedlander, whom he faced down in his approach but who, in the end, was complimentary towards him.

[2] He left Germany for England in 1933, following a depreciating political climate in the Third Reich which led to his being sacked from his post at the Kaiser Fredrich Museum because he was Jewish.

[2][1] His workshop in Golden Square, Soho is the site of the first London Stolperstein stone, marking the workplace of Holocaust victim Ada von Dantzig who studied restoration with Ruhemann.