Hearing aid, model R3
Hearing aid, including earpiece and receiver connected by cable, model R3, by Viennatone, Austria, 1960-1970
Hearing aid, model R3, in black plastic case, by Viennatone, Austria, 1960-1970
Hearing aid, including earpiece and receiver connected by cable, model R3, by Viennatone, Austria, 1960-1970
Black plastic zip case for Hearing aid, model R3, by Viennatone, Austria, 1960-1970