Wondering if anybody here could tell me much about this gun and worth. So far by asking many questions I have learned that the proof is Birmingham and it was made between 1800 and 1815 by Twigg & Bass. Twigg owned the company first but then Bass came into business with him around 1800. So I hear. On one side of the gun it says London and on the other is Twigg & Bass. The proofs I thought looked like 2 swords crossed with a crown on top and a letter B below the swords where they crossed. Then I was told they are not swords but scepters. Another words a fancy cane per say. The barrel is a brass barrel and that is screws on. I wonder to why the barrels screwed on and just thought of it as a breakdown. Seems there is a better reason for it doing so. I learned the fps of this gun through another bit of information sent to me. The test where done two different ways. The patch and ball method and then the swag method. The ball and patch is all I knew about how they are loaded. I owned a .50 cal years ago and shot the heck out of it and that's all I knew about black powder guns until I bought a old one and finding out different things about our history. Anyway, the second option is that the barrel is unscrewed and a bigger ball would be put into place. I think it was a .49 dia ball versus a .42 ball that is loaded from the front of the gun. So they unscrew the barrel, add the charge, add ball to top of charge sitting on threaded end. They put the barrel back on and screw them back in and when doing so it swagged the ball into a slug shape and the gun produced more power because of the added pressure needed to get it out. The first way the round ball was shooting almost 300 fps. The second way swagged into place in jumped up to around 500 fps and heavier slug. Giving it a whooping 91 fpe. At the light load and the guy had a heavy jacket or lots of clothing it may have really just pissed a person off then killing them. Close range gun like 2 feet. LOL Well that's it for me so if anybody knows anything else please let me know and I appreciate it.
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Low res left side of gun - london text and can see swords with crown.jpg92.7 KB · Views: 88
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Low res right side of gun - london text and can see swords with crown.jpg78.8 KB · Views: 77
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close up of stamp swords and crown maybe a letter B.jpg189.2 KB · Views: 46
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close up of right side.jpg103.9 KB · Views: 63
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close up of left side.jpg108.1 KB · Views: 58