Obvious stunt double for Steed when fighting Vincent.
With the exception of the few that are opened, the jars of honey are really filled with water. The contents slosh around too much when handled or jostled to be as viscous as honey.
Unless Vincent's revolver is a Nagant M1895, the noise suppressor on it would be ineffective.
All of the swords are obviously plastic props.
When Steed hears Emma and Vincent fighting, the shadow of a boom mike can be seen in the upper right corner of the screen.