Hmmmm, grey class. there was one commanded by sir peter scott. he used to close in shore and get pictures of ducks. think he was based in dover at that time. the grey goose was at newhaven for a while then went round to shoreham, near the lady bee boatyard. I cant remember if she had these insulators or in fact if she is still in shoreham (probably a rich mans gin palace now) perhaps one of our southern members can throw a bit light on that one for you.