If you haven't found information might try the UK radio forum?
http://www.vintage-radio.net/forum/index.php
Norm
:hello i have a majestic monarch of the air type a 247 radio it has a wood case and is made in great britain there is a am band and 3 shortwave bands i am looking for general information on this radio and a schematic it appears too be made in the 50s thanks greg