Pocket Radio. Bolton. Made in Hong Kong. UK patent. No: 978571. 

Procured during 1960s-70s 

The Bolton pocketmate 7603 includes a thermometer and a small light with a button. On the enclosure, one can read: "Design Regn. No. 978571". It is in a metal case. Thermometer reads in Celsius and Fahrenheit. Permanent Magnet Dynamic (PDyn) Loudspeaker. Very small Portable or Pocket-Set (Handheld) < 8 inch. Dry Batteries / 2 x AA 1.5 Volt.