A pole-cannon is a very large-bore firearm, mounted at the end of a sturdy stick for the (theoretical) safety of the user. The defining instance in Society armory is based on a design used at Crecy, 1350 [cf. Stone 229]; similar weapons were used on the Tudor warship Mary Rose, c.1545 [Rule 158]. The mouth is to chief by Society default.
Ioseph of Locksley, the Rhymer bears as a badge: Per fess vert and argent, in saltire two pole-cannons Or, hafted sable, enflamed proper.