Small earthenware plate on stand or salt plate, salt-dish crockery holder earth discovery ceramic earthenware glaze lead glaze, hand-turned glazed baked Red shard brown glaze pinched stand ring two revolutions upright straight edge containing slit internal glazed external underside single glaze spatters archeology Valckensteyn Poortugaal Albrandswaard indigenous pottery seasoning to serve salty salt food Soil discovery: canal at kitchen castle Valckensteyn at Poortugaal now Albrandswaard 1961