Penpractice.com Back Home Reprinted from the Journal of the Writing Equipment Society (UK), July 2006 Fig.1: Advert from The British Stationer, November 1935 Fig.2: 1928 UK Patent 297,903 Fig.3: 1935 UK Patent 442,262 Fig.4: Button fillers ‘56’, ‘76’ and ‘106’ (the ‘76’ should have a narrow nickel cap band). Fig. 5: The dismantled pen Fig. 6: The button mechanism Fig.7: The button in the extended position Return to top of page