The fourth season episode "Fly the Flag" featured lead toy soldiers. I am unfamiliar with these, they are 54 mm and the Lovejoy character (Ian McShane) refers to the as (phonetically) " Kai-ah?" from France around the late 1800's. They look like lead Britain's to me.
The show has a wargame setup supposedly depicting the march to and from Concord in the beginning of the American Revolution.
Amazingly, they actually have pyrotechnics and blow up the toys. Yikes!