The Great Duke Nikolay Nikolaevich by Unknown Artist (1856)
oil on canvas, Military-Historical Museum (Saint Petersburg)
Before, after and in the process of restoration:
Done:
The painting was consolidated, cleaned of the yellowed varnish. Discoloured retouching was removed. Then the painting was varnished, new retouching was put. The missing part of the frame was replaced with gypsum and retouched.
