HUGE Gertrud and Otto Natzler VOLCANIC vase ca 1959

Gertrud and Otto Natzler LAVA bowl USA, circa 1959
Description: Sky blue and lava glaze. Extremely rare thick lava glaze with original flaking exposing golden brown honeycombed slayer below. Signature: NATZLER
Form: Vase
Materials: Earthenware
Method: Wheel-thrown
Dimensions: 10.25 diameter x 10.37 height - inches
Condition: Immaculate; no chips, cracks or fractures. All flaking occurred during production; zero damage since and piece is sturdy to the touch.