Rob1956
Member ACCC (Australian Commonwealth Collectors Club of NSW) 26 Jun 2019 11:12:48pm | re: Three halfpence
Hi Pooh
During the very early period of Federation, the printing process was very primitive and millions of stamps were printed with some form of error, one of the most common of errors was white specking on stamps, mainly caused by ink particles sticking to the doctor blade when excess ink is scraped off.
Such specking can leave what is known as unique varieties, as specking is not a repeated process in the same area such as a roller flaw, constant inking error or some form of cracked or worn plate.
And of course specking can mutate a letter/s or number.
There are other forms of specking, when the sheet is still a little wet when laid upon other sheets, the sheet can be slightly stuck to the upper sheet and when separated, some of the inking would be removed leaving exposing specks of the paper underneath.
And the way the stamp was treated over time.
Unless the stamp is put under a microscope, it might be impossible to say exactly what is the course of the malformed letter.
Rob
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