![]()  | 
	
| 
			
			 | 
		#10 | 
| 
			
			 Member 
			
			
			
				
			
			Join Date: Dec 2006 
				Location: Idaho, USA 
				
				
					Posts: 230
				 
				
				
				
				
				 | 
	
	
	
		
		
			
			 
			
			I'd say this is probably a signal cannon.  These small ones were often used to make noise to alert other ships in the dark or fog etc. 
		
		
		
		
		
		
		
	bbjw  | 
| 
		 | 
	
	
	
		
		
		
		
			 
		
		
		
		
		
		
		
			
		
		
		
	 | 
		
  | 
	
		
  |