Thanks. Though it does have a small but annoying mistake in it. I might re-do it.
Possibly a 4.5", although they are rather rare in the documentaries I have seen, and I must confess one of my weaknesses is identifying artillery! The 4.5 is fairly easy to spot, but to me a 15" looks a lot like a 9.2". And the 'de Bange' guns all look the same to me!
__________________
In wine there is wisdom, in beer there is freedom, in water there is bacteria.