Milnes high tension battery, 120V unit, for use with wireless apparatus. Patent no.311849, manufactured by Milnes Radio Co., Victoria Works, Cottingley Bridge, Bingley, West Yorkshire, c1930-1935 High-voltage radio battery, 1930-1935 1930-1935
Oldham radio accumulator (type CVG3: 2V, 30Ah), by Oldham and Son Ltd, Denton, Manchester, England, 1934-1960 Oldham radio accumulator 1934-1960