Long story cut short. In 1985 my sister was working for Wilkinson Sword and she gave my father what she reckoned was a lifetime supply of Profile blades (they are plastic packs of 5 which say Profile on them) and a handle (he is 90 and still using them). However the 'jaws' on his handle are not working right. So I ordered a Profile handle and blade of the internet (it can probably be found as the 'Newcastle brown ale' profile razor. However, the newcastle Profile handle & blade don't match the blades and handle my father has. They are a 'side slide on' setup, whereas my fathers handle has jaws - and the plastic back of the blade is slightly different to accommodate this. Does anyone know where there two types of profile razor?