From Grace's Guide To British Industrial History:
"Ormiston and Glass
of Saracen's Head, Snow Hill, London. T. A.: "Porteplume, London." (1922)
of 876 and 878 High Road, North Finchley, London, N12. Telephone: Hillside 6581. (1947)
1868 Company established.
1902 Incorporated as a limited company.
1914 Manufacturers of fancy leather goods, fountain pens and ball pointed pens. Employees 150 plus travelling representatives. 
1922 Listed Exhibitor - British Industries Fair. Manufacturers of Ladies' Handbags; Writing, Letter, Card and Attaché Cases; Purses, Pocket Books, Fountain Pens, Stylographic Pens, Penholders. (Stand No. J.91) 
1947 Listed Exhibitor - British Industries Fair. Manufacturers of the "Keystone" range of Fine Leather Goods consisting of Writing Cases, Desk Blotters, Document and Brief Cases, Dressing Cases, Looseleaf Notebooks, Purses, Letter Cases, Handbags, Treasury Note Cases, Billfolds. (Earls Court, 1st Floor, Stand No. 466h) "
They show up in discussions and illustrations of their wares on fountain pen websites.
DE OPPRESSO LIBER
"...Men may spurn our appeals, reject our message, oppose our arguments, despise our persons ___but they are helpless against our prayers. "