Thanks for the pics!
This is a toughie. The rings all look virtually identical, which I guess I'm not too surprised at based on Pedler often using the same hardware across time and space.
I would imagine that the item with the most similar texture is a match; in this case the barrel would more likely be a match with the rest of the joints.
However, I'm not a hardcore Pedler expert like some other folks here. Without a serial, its more of a mystery. But, In my (un)professional opinion, I'd say the body matches the bell, not the barrel.