Here is a view, albeit a poor one, of the maker's mark, a "B" with a crown. The mark appears on the obverse & reverse with the obverse being slightly larger in size. I had never seen this mark before acquiring this piece so it was a bit of a puzzle.
You can also make out a brass strike plate that covers the blade as it is in the scabbard. Probably not as effective as the leather buffer pad as this blade shows it's age in some places but is still presentable.
