Need Expert Help Identifying Antique Shotgun

Hi i need help identifying a antique Single barrel break action shotgun,the barrel is 28" long. I cant find a name really i found a patented date of Aug 11th 1886 on the barrel and some other date on a plate above and behind the trigger that say Patented October 18 and patented June? then there a triangle looking stamp above it looks like it says trico? i cant really make it out. on the side of the receiver its stamped liberty.There is a number stamped of 9201 i see stamped in several places. I'm also wanting to know if its a military gun because someone carved there name pvt. J.Bond. anything about this gun, like who made it what gauge anything at all would be useful and if its worth anything? thanks so much for any help i appreciate your time.