Evidence for Roman soldiers carrying situlae before TC

[D B Campbell]

If we look on TC, this seems to be the source:

In this scene (Scene 4, Cast 13, Cichorius Tafel VII), Cagnat (in Daremberg-Saglio) saw a haversack, a net containing meat, a cooking pot, and a ladle. I don't have access to Cichorius' commentary, but Richmond listed five objects: a string-bag for forage, a metal cook-pot, a metal patera for cooking and eating, a tightly-filled sack, and a satchel very like a tool-kit.

Richmond's satchel and tightly-filled sack are, of course, probably water skins, as is Cagnat's haversack.

But I've never seen any of the items identified as a bucket (situla or (h)ama). Which one is it?