Stan & Margaret,

You last post helped a lot. I found your link very interesting. I sort of ascertained that your description of the mechanism was how it actually worked. But I'm usually wrong.

Just a warning, folks. do you realize that if you keep posting such facinating pictures and information about lighthouses here on the Forum, you will undoubtedly have some of us knocking on your door if we ever have the opportunity to visit the UK?

bobo