English shotgun
 

I was given a R.S. Parker. I have been doing some research on but can not find anything about it. I did come across a photo of a hammer plate that looks exactly like the one on my shotgun , but it has the name TH Parker inscribed on it where mine has R.S. Parker inscribed on it. I can not fine any connection between the two shotguns. Any help will be much appreciated.

Not a Parker Brothers shotgun. Probably made in Belgium. One of dozens of cheaper knockoffs of well known gunmakers rampant at the time. Depending on its condition it may have value as a shooter, if not, as a wall hanger, if not, just junk. Good luck.