This page allows you to do a look up on Post Offices within New Zealand. If you want all the PO’s that start with 'H', enter 'H' in the PO Name field. If you want all the PO’s in the Christchurch District, enter 'Christchurch' or 'Chr' in the District field. If you see a black envelope next to a Post Office, it means that there is a example of the cancel from the Post Office in the system. Click on the black envelope to see the examples.