... J. M. W. Turner R. A.

Joseph Mallord William Turner Royal Accademy

From "Diagnostic investigation" of a painting showing a maritime scene signed Turner:


"The signature is not readable under x-ray as it does not have a "radiopacity", similar to that of the preparatory layer. At the same time superimposed scratches or sketches which would reveal traces of forgery are not in evidence. This is obviously not sufficient to confirm it’s authenticity....

 

 

under x-ray