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					Originally Posted by Rick
					
				 
				 ... d'you suppose this could be a signal cannon of some sort ? 
			
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 I would think so, Rick. I slightly remember reading somewhere that they used small cannons in fleet ships, to signal one another, like for transmiting or comanding tatic maneuvres ( as also for saluting ?), but i am not certain of the correct story and also if this is such specific thing. It appears they (mine)function/s on the upright position.
Let's see what David comes up with. The specimen he showed seems to be a similar implement ... providing, for a start, its dimensions are also reduced.
It certainly is also very old; we're talking centuries here, right ?
Fernando