This particular TV appears in their 1937/38 brochure and is mentioned in both Practical Wireless and Television and Short Wave Magazine in the second half of 1937. However the set was not actually produced until the latter part of the first half of 1938.

It was an almost half hearted attempt to enter the market. They produced a few sets but in 1939, long before the war, they were concentrating on work for the military.

A number of TV cabinets ended up being stored at the outbreak of war but deteriorated so badly that they were subsequently scrappedPrior to the Viceiver they also produced sub-assemblies (PSU, timebase etc) for televisions.

I got all this from a chap called Hugh Haynes, who took over the business from his father just after the war.