The first Air New Zealand aircraft is registered B747-419 ZK-NBV. The Qantas aircraft is a B747-438 and is registered VH-OJA and the final Air New Zealand B747-475 is registered ZK-SUH.
I've always been impressed by the B747. It is impressive, not only for its size, but also it's shape. On one hand, the "bubble" does not look right, yet perhaps, this makes it the most instantly recognisable airliner in the world. Awesome!