Switch Tip on old Morses

[banjoplayer]

Hey guys,
nerd question: what about the Switch Tip on the old 80s Morses?
Never saw one like this on other models/brands or as an aftermarket part these days.
Is there something special about it? A custom thing? A special manufacturer?
Thanks!!

 

[Fontanz]

That‘s a question I‘ve been also thinking about for quite a while. It‘s a pity there‘s no feedback. Where else if not in this forum we should find an awnser?