Your Williams and Powell hammer gun is built in accordance with J.Williams patent #1247 of 1875.A similar gun is described and pictured on page 35 of the "British Shotgun Vol;2 by D.J.Baker and I.M.Crudgington. At the time this book was in preparation,I was in contact with David Baker in connection with this unusual patent;because I owned Williams and Powell gun #7060 which is identical with the example currently under discusion and the gun ultimately pictured in Vol;2 of the British Shotgun. At that time David was only aware of one other example of this patent #7030. I would be interested to know if your gun falls in this # range?
