細節
A Radiola single-valve receiver
by Socit Francaise Electrique, Type BL1 No. 319, with exposed valve on ebonite top plate, two loading coils and black cloth-covered case -- 6in. (15cm.) deep
by Socit Francaise Electrique, Type BL1 No. 319, with exposed valve on ebonite top plate, two loading coils and black cloth-covered case -- 6in. (15cm.) deep