The wood grain appears throughout, because differences in wood structure and density that arise during the natural growth of trees. This panel is made from three pieces of oak, butt-joined with an animal-based glue. The joins between the planks can be seen as distinct vertical lines in the x-radiograph.
As with any panel of this age, numerous small damages are present, but they are only minor. That a painting such as this one, which measures 3/16” at its thickest, has survived nearly 400 years in such outstanding condition testifies not only to the craftsmanship with which it was created, but also to the care with which it was kept.Next: Canvas Reinforcements