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of South Hunter Street, Liverpool, 1. Telephone: Liverpool, Royal 1065. Cables: "Britannic, Liverpool". Sales Office at 53 Brewer Street, Piccadilly Circus, London, W1. Telephone: Gerrard 5721
Early 1900s. The Liverpool firm of Curzon, Lloyd, and MacGregor began making pens shortly after the turn of the century.
1920s This was a long name to stamp onto the side of a short pen, so in the 1920s, the firm settled on the Curzon name.
1930s In the mid-1930s, their products became known as Summit Pens (using a "twin peaks" trademark).
1947 British Industries Fair Advert: 'Don't forget to visit the stand of Summit Pens.' Manufacturers of "Summit" Fountain Pens, Propelling Pencils and Gold Nibs (iridium tipped) for Home and Export throughout the World. (Stationery and Printing Section - Olympia, 1st Floor, Stand No. H.2144) 
Post WWII. They remained in production until just after the Second World War. Summit pens occupied much the same niche in the middle of the market as Burnham and Conway Stewart, but were more conservative in style than those competitors.
Summit used "lizard" plastics rolled on the bias for an unusual helical effect, which was very stylish. Summit's use of a Vacumatic-style clip and jewel assembly was several years ahead of its adoption by Conway Stewart.