New Zealand has been issuing round shaped stamps with their national bird, the kiwi, on it since 1988. They have had six issues so far, with each issue having a different colour. However in 1999 they took the remaining stock of their 1997 purple kiwi stamps, and overprinted them with a sun on the corner of the stamps. In 2000 when the stamps were re-issued with a gold colour, the rate was increased from NZ $1.00 to $1.10, and finally when it was issued in 2002 in brown colour, the rate had shot up to $1.50.
They have also been incorporated into three exhibition minisheets in 1993, 1994 and 2000. I have not shown these minisheets in these pages. If you click on the links above, the green, red and blue kiwis will open to a page containing an image of the stamp, and its accompanying First Day Cover. The purple kiwi will only have the stamp image and a gutter pair stamp set. The remaining stamps ie the Last Sunset, gold and brown kiwis will all open to an image of the stamp, a FDC and a gutter pair stamp set.
Please note that all the above stamps are of the same size.