ERWIN HEERICH Solo Exhibitions ERWIN HEERICH Stuttgart: Galerie Hetzler + Keller, Calwer Straße 11 20 September – 30 October 1974 Group Exhibitions HANNE DARBOVEN, ERWIN HEERICH, HANSJERG MAIER - AICHEN Stuttgart - Bad Cannstatt: Galerie Hetzler + Keller, Wiesbadener Straße 15 16 June – 30 July 1976