The business soon gained a listing in Harrods and other leading department stores quickly followed.
During World War Two, Brand X turned its attention to military production. By 1946, the company was again focused firmly on the consumer market.
The 50s saw the invention of the transistor. This proved a momentous occasion for the brand and in 1958 it announced the launch of its RT1 model.
The key selling point of this model was that it was fitted with an Ever Ready PP8, which meant that on average the models lasted at least two years before the battery needed replacing.
In 1992, Brand X extended its radio offering by introducing the stylish Lifestyle line and the World Series range aimed at regular travellers.
One of Brand X's most famous successes is the Revival. The hand-crafted wooden model, covered in leather cloth, was based on a 50s-style design.
Can you name this brand? Fax your answer to 020 8267 4504. The first randomly selected entry wins a bottle of champagne. Last week's winner was Stephanie Starr of Britannia Rescue in Huddersfield, who correctly identified Comfort.