Ivory supports are very prone to warping and splitting in fluctuating .
If held in the palm of the hand, a thin ivory could react to the skin’s moisture, which could quickly cause the ivory to warp.
Removing an ivory from its case should only be carried out in an emergency situation or by a conservation professional, if treatment is required.
When we think of paintings, we generally think of works painted on canvas, wood panel, hardboard or rigid card.
Many other materials, however, have been used as supports for paintings.
Sometimes, a lock of woven hair was included inside the casing. The thin and delicate paint surface can easily be rubbed off or soiled by mishandling.