The deterioration seen in this picture is the cupping, i.e., curling
up off the canvas and detaching of the paint layer, visible at the
left side and at lower right.
After treatment.
In order to completely re-adhere the lifting paint layer it was
necessary to line the painting onto a new canvas support. This relaxes
and restores the paint layer to its normal plane and appearance.
Cleaning and varnishing followed.