Concerning The Crossbows is a written note found in Dishonored.
Transcript[]
We initially thought it a great find when we came across some of the crossbows that the assassins had been using to harry our patrols. The models we found, however, have proven lacking. Daud's men have greater accuracy and range, and I swear theirs reload faster. I'm recommending that we stick with pistols and sabers and count this as a lesson in where our strengths lie.
Sincerely,
High Artificer Bartholomew
Location[]
It can be found on a table by the shooting range in the locked workshop in the Back Yard during the mission High Overseer Campbell.