VERY FINE. AN EXTRAORDINARILY RARE ERROR OF COLOR THAT IS SELDOM OFFERED IN SUCH PREMIUM ORIGINAL-GUM CONDITION.
A desirable error and one of the rarest errors of the Australian States that is often missing in even the most advanced British Commonwealth collections, not to mention it being a key stamp stamp for the topical bird collector.
Nearly all unused examples are without gum, having come from a half sheet of 60 that was purchased by Stanley Gibbons in 1879. There were also a tiny number with original gum that emanated from a different source (possibly the rest of the sheet), where all of the used examples also came from.
With 1977 R.P.S. certificate