Out of interest, if I took that final nut off the pinion shaft, would the base plate lift out?
I had the good fortune to pick up another type 6 today so took the opportunity to check this area.
When the screws and stainless shroud were removed the baseplate would rotate as much as the flint wheel gear and striker slot would allow.
Further light levering got it off the rather fragile central tube, only the screws need to be removed, the rest can be left in place.
[photo]Personal-Album-1695-Image-53737[/photo]
[photo]Personal-Album-1695-Image-53751[/photo]
Edit: Beware pre 2000 lamps appear to have asbestos washers, changed to Kevlar on the newer lamps!