There seemed to be nothing wrong in looking at the postmark.
A postmark is the stamp put on the outside of a letter at the office where it is posted.
Carmina received a letter, bearing the Italian postmark, but not addressed to her in Teresa's handwriting.
It bore the Paris postmark: on it was drawn the route from Verdun to the frontier.
A week later, the mail brought her the following brief letter, with a Southern postmark.
There was no date and no address, but the postmark was Bradfield in the north of England.
No sooner had Fred glanced hastily at the postmark than he whistled to indicate his astonishment.
To my surprise I noticed that the stamp in the corner was English and the postmark "London."
He saw with astonishment, as he put another lump of sugar into his cup, that this letter bore a New York postmark.
Rita had been receiving many letters with the New York postmark; but what of that?