There's not a single sign.

The Right-thinking Radical expresses surprise at the intelligence

Indeed! But at some high casement

Surely you saw him stand,

Or out from a towering rampart

Waving a mailèd hand?

The Unfeeling Unionist rejoins

I did see him at the casement,

And he wore no armour at all,

But the Postman helps him haul the mail