Re: Fuse board
Yes, I think you are right. Looking at what is available in push pull switches, there are some that seem to be made for headlights (off-on-on) I bet that is what it is. I think I'm going to replace it with the 4 switch with 2 12 volt connecter panel that West Marine sells. I might upgrade later to something with a meter and a battery selector switch as you suggest.
Stupid question: Where do you find the hull number?
1977 Helms 25