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|  12th April 2016, 06:16 AM | #5 | 
| Member Join Date: Apr 2014 Location: Louisiana 
					Posts: 363
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			Is the inside of the vent threaded? If so I would second the line throwing gun ID. Also, the trunions appear to be set along the center line of the bore. Most modern cannon, from about c. Mid-18th C. used as weapons had them set lower, almost tangential to the bore. | 
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