A product of Marbourn Limited.
Black card with yellow Marbo logo. Price label top right has the price of 31p.
List No. 913/P
This item probably dates from the late 1980s or early 1990s. The telephone number code for Hartlepool is given as 0429, meaning it was prior to April 1995 when codes all changed to start with 01.
Rather strangely, the 15A wire is described as 'Kettles, Heaters and Washing Machines'. While fixed immersion heaters were often on dedicated 15A circuits, washing machines and kettles were not - and as a kettle is a portable item that could be plugged in anywhere, providing a single dedicated circuit for it would be totally pointless.