Zenith Radio Co.
USA, 1937 Bakelite, enameled metal 7 w x 6 d x 8¼ h in (18 x 15 x 21 cm)
Guardian Ear measures: 4.25 w x 8.25 d x 6.25 h inchesSigned with molded marks to Radio Nurse: [Zenith Radio Nurse Design by Noguchi Patent Applied for 117 Volts 50/60 cycle -25 watts Zenith Radio Corp., Chicago]. Signed with applied metal tag to Guardian Ear: [Guardian Ear of the Radio Nurse Patent Applied for 117 volts 50/6 cycles 25 watt Zenith Radio Corp. Chicago]. literature: Isamu Noguchi: Sculptural Design , Eisenbrand, Posch and von Vegesack, ppg. 110-111