1. 
   Nock Gun
   7 barrelled volley gun given to Sgt Harper by his friend Richard Sharpe. Made by Henry Nock of London and origina;;y made for the Royal Navy.
   Found op http://www.encyclo.co.uk/local/20769
   
   
2. 
   Nock gun
   The Nock gun was a seven-barrelled flintlock smoothbore firearm used by the Royal Navy during the early stages of the Napoleonic Wars. A volley gun originally designed for ship-to-ship fighting, its use was limited and eventually discontinued because the powerful recoil limited its use. Since then,...
   Found op http://en.wikipedia.org/wiki/Nock_gun
   
   

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