Urs Lüthi Tell me who stole your smile, 1974 Portfolio with 8 offset prints 38 x 30 cm Folkwang MuseumUrs Lüthi Tell me who stole your smile, 1974 Portfolio with 8 offset prints 38 x 30 cm Folkwang Museum Urs Lüthi Tell me who stole your smile, 1974 Portfolio with 8 offset prints 38 x 30 cm Folkwang Museum Date 31/03/2018