It features two naves and retains an altar in wood marquetry and pyrography. Nehmad produced primarily abstract prints employing various techniques, often including pyrography. But others incorporate color and pyrography into their relief carvings. Less common uses include pyrography (burning designs into wood) and plastic welding. In 2002 he started using the technique of pyrography on metal and bamboo leaves. Traditional pyrography can be performed using any heated metal implement. Some laser systems are sufficiently sensitive to perform pyrography on thin card or even paper. Modern pyrography machines exist, and can be divided into three main categories. Pyrography is the art of decorating wood or other materials with burn marks. Pyrography dates from the 17th century and reached its highest standard in the 19th century. Pyrography is also applied to leather items, using the same hot-iron technique.