This lantern belongs to Henry Plews but the images are mine. The lantern is a standard 1922 pattern Evening Star model R92076 but it is fitted with a pump. The pump is marked with "H Meads Patent" I believe this is GB pat 234622 applied for March 6 1925 and granted 4 June 1925.This patent is assigned to Parkinson and W.B Cowan Ltd who were not as far as I am aware in the lighting business but they did make stoves and industrial burners. From the way it is inserted I suspect some engineer decided to angle it up so the air discharge is above the fuel which ensures any failure of the check valve will only release pressure and not vent fuel. To date this is the only example of this integral pump Evening Star lantern known.