Obscure in-house joke, possible made a bit clearer id you refer to this post and consider who was the Captain of HMS Goliath.
Some background to the Wings of Glory game can be found in this post.
More photos of the Impetus game can be found in this post.
And still more photos plus additional commentary can be found in this post:
ReplyDeletehttp://avonnapoleonicfellowship.blogspot.com.au/2014/11/impetus-at-nws.html