traits of a Roman legionary

[richsc]

Carolyn Lawrence, who writes the Roman mystery series for children, asked me the following questions about how Flavia Gemina can tell the following. I gave her an answer, but purely speculative. What would you think?

Salve, Richard!

I hope you are well!

You do re-enactments, don't you? I'd love to pick your brain. I'm just writing
some short stories called 'The Legionary from Londinium and other
Mini-Mysteries'. Some of them will be set in Britannia. My question is this:

If a recently retired legionary walked into Flavia's atrium in an ordinary tunic
and sandals, how could she deduce -- Sherlock-Holmes-wise -- that he had served
in the Roman army?

His erect posture?
Biceps on his left arm bigger from holding a shield?
Some kind of ring?
Callus on hand or fingers from holding sword in exercises?
Key words in his vocabulary?
Over-developed calf muscles from long marches?

Can you think of anything?

Also how old would a legionary be on retirement?

Any feedback and/or suggestions would be hugely appreciated. :-D D

Vale.

Caroline
http://www.romanmysteries.com