Claudius's legions invade Victorian Britain

What if Claudius's army invaded Britain during the invasion scares of the 1880s, while mainland Eurasia reverted to its Roman-era condition?

The legions would face an overwhelming weapons disadvantage against Victorian breech-loading artillery.

Napoleonic infantry with muskets or a Second World War Home Guard unit with .303 rifles would already have a decisive weapons advantage over Claudius's legions. The question is then clarified as an 1880s invasion scare. In that version, the Romans face breech-loading high-explosive shells. Their anticipated defeat leads to a joke about collecting legionary eagles for the British Museum.