This glossary of postal symbols gives a brief description and explanation of postal markings, labels and seals whish are found on letters, postal items and packages.

Choose the first letter:

DELIVERY NOTE - written receipt for the sender that proves that the delivery has been properly made;
upon receiving the mail item,  the recipient must immediately stamp or write the date on it.
The recipient must return the delivery not to CP the same day or the following day at the latest.