If your a secret agent and your surname is Tinsley, then 'T' might not be a good alias. Especially if you are in the newspapers. A lot. But T was a quick learner and perhaps it was just a nome-de-guerre (here my spell checker suggests gnome-de-guerre). There is actually no photograph of him that I know of. There is no doubt there must have been pictures of him, if not made by his employer, than certainly by the Germans who photographed everyone entering or leaving the office of the Uranium at de Boompjes 76. Apart from a caricature drawn by a colleague, until now there are no known photo's of Mr T.