Shots of expert examining painting for defects, using optical instrument. Shot of other man examining flake of paint in microscope. Microphotography shot of flake. Shot of woman carrying out other operation. Shots of paintings, men in storage room. Front shot of expert's face as he retouches painting, wearing stereoviewer. CUs of his hand, of brush retouching, restoring painting. Shots of Dr Charles Comfort at telephone, of his assistant at telephone. Shots of panel of experts examining and discussing painting. Shot of National Art Gallery library. CUs of books, woman selecting one. Shot of two resident experts examining prints of paintings. CUs of prints. Shot of crew setting up exhibit in gallery. Short sequence on picture being framed.