This is the front panel of a wood wedding chest. Over the years the wood has shrunk and expanded with the variations in temperature and humidity. This is the nature of wood. Unfortunately when the surface is painted that paint tends to suffer. In this case the natural gesso and oil painted delaminated, leading to heavy loses to the painted design.
The delaminating paint was consolidated with Acryliod B72. The missing areas were then retouched with Rhoplex WS24, powdered pigments and Golden fluid acrylics. The retouching was limited to just the missing areas. None of the original design was painted over, and the treatment is also reversible.