What appeared to be a simple post, quickly turned into a much more complex story.
The 45 cent self-adhesive coil stamp design was introduced in July 1994. The letter A representing the sender and B representing the recipient of the mail. In June 1995 Leigh-Marden advised New Zealand Post that they were withdrawing from the stamp printing business and an order was placed with Sprintpak Pty Ltd to ensure supply continuity. In October 1995 postal rates were decreased and printings were done by both of the companies mentioned above.
So this leaves us with four different but easily identifiable varieties as can be seen in the group above.