4652286
9781592964413
It seems so simple-a stamped envelope delivered by the local postman. But it hasn't always been this easy. From messengers on foot to pony express to airmail, our postal system has progressed a great deal with the passage of time. A combination of inSomervill, Barbara A. is the author of 'History of the Post Office ', published 2006 under ISBN 9781592964413 and ISBN 1592964419.
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