I live in a very old house....and sometimes, I make the decision
that little "cosmetic fixes" are the best means to the end.
In this picture, there was a seam line between the lower
wall and the wallpaper - a chair rail wouldn't work.....
So -- hot glue gun and vintage lace to the rescue!
This will work until the day when we have a cash surplus and can
indeed redo the walls in an HGTV kind of way (insert "sure, when pigs fly" here)
vintage lace it is.
works for me....