New Zealand 1973-76 4c 'Puriri Moth', no watermark, error of missing colour, apple green (wings and leaf) omitted, SG1011f.
Pristine unmounted mint example with full original gum.
A scarce QEII stamp error with just 20 examples which can exist from the first two columns of a pane. Looks decidedly undervalued based on its current catalogue value against such extreme scarcity.