British Nicholson Over and Under Pistol

This British Sea Pattern pistol is an example of a smallarm used by the Royal Navy.  It measures about 16″ long, is .71 caliber, and was made in Belgium for the Royal Navy.  For source and more details, click here.

 

Image from: http://amhistory.si.edu/militaryhistory/collection/object.asp?id=532&printable=1