Parker pen boxes - UK

I have several Parkers and several boxes which I would like to reunite correctly. I know how to date the pens, but not the boxes. Any ideas / hints? Boxes range from wide with black dots, white with halos, white with grey 'drunken grid' lines and hardshell crocodile embossed, brass lipped with L1 imprinted on the base. Unless I am missing something there seems to be a gap in internet resources for Parker boxes. Any help or links appreciated.