Not all Stone Age vessels were made of clay. In 1876 various wooden objects of Neolithic date were found in the bog Christiansholms Mose near Copenhagen, where half of a wooden bowl turned from alder wood and a scoop of elm were found. The shape was almost the same as that of the ceramic vessels of the period. A spoon carved in oak was also found in this bog. We must assume that wood was a popular material for vessels. If more has not been found, it is because wood is a more easily degradable material than pottery.