The markngs are not correct for this gun to be a W Richards (William I seem to recall) of Liverpool. It could be a low grade Clabrough or it could be Belgian, likely Pieper if Belgian. The proof marks will tell the country of origin.
I am having issues posting photos here. I have posted several photos of the gunon the Parker Collectors site, under the “other fine doubles” forum topic W. Richards Liverpool 10.
The gun is definitely a Birmingham gun, as I have posted no photos of it here, I dont know what markings you find incorrect?