Vintage Terra Cotta Flower Pot Wall Pocket Wall Pocket White Cala Lily Pottery. This is a gorgeous terra-cotta pottery wall pocket. It is unglazed except where the white cala lilies are. It has the hole for hanging and one for drainage. There are no chips or cracks. There is crazing to the flowers, dirt, and grime from its prior use. Please see the pictures for the full description.