Empire portable typewriter

I cleaned this nice little Empire, Made in England. Direct import by Royal Mail, royal price by the way. Cleaned it, repaired the main spring (needed to dismount the carriage to do that). So much fun! Vivat!

Do you know the brand name of this type?

UPDATE 9 July 2014: thanks to reader and fellow collector J.H. we now know the name of the type used on this Empire portable: it is GORDON WEBB & Co., Ltd.. See below an add drawn from Typewriter Topics, Oct. 1920:

detail of the above add, with the characteristic (Poseidon's?) trident