Aubrey/Meriden Fire Arms indicated barrel steel on the action flats, not T. Barker

"Belgian Royal Damascus" and "Belgium Imperial Damascus" marks are frequently found on T. Barker and others



Note the "Belgian" is in a different font. It was not until 1891 that the U.S. required the country of origin to be clearly marked on an imported gun.

Lots of Barker/Parker variants and Sears ads are about 1/2 way down here
http://www.picturetrail.com/sfx/album/view/20091267