F is for Further Follow-up - Micro Vessels

I'd forgotten I'd picked the bits up from the storage unit, to do a comparison, so here's a bit more on the small or 'micro' vessels we looked at a couple of days ago, and some more bits from the Internet downloads folder on naval stuff. Both this and the previous should be viewed in the context of the original post on the very small vessels, which was part of a series of seven articles;&