Where can you find information about a Utica Fire Arms double barrel side by side with ornate curved external hammers that says Taper Twist on the top of the barrel?

Guns marked "Utica Fire Arms Co. Pat. Nov 25,'09, March 29,'97" were made by Hopkins and Allen Mfg Co, 1868-1898. If your gun does not have these patent dates, it was probably made in Belgium, c. 1880-1914.