One light centre fold.
Pleasing example to be put away.
There has never been a better time to start saving notes from the 2006 runs.
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Design
A remarkable banknote in every way with abundant security features. This note had some extremely special features built into it as security against forgery. It was a world first and makes these notes highly desirable as collectors’ items. Collectors value numerous variations of this note.
The 50 dollar note embraces these following security features:
- Within the clear window is printed a stylised image of a compass along with embossing of the number 50. These can be seen seen from either side of the note.
- When the note is held up to the light a seven pointed star within a circle is formed by four points on one side of the note combining perfectly with three points on the other.
- When the note is held up to the light an image of the Australian Coat of Arms can be seen under other printing.
- The words FIFTY DOLLARS are microprinted and can be seen with the aid of a magnifying glass.
- Slightly raised printing (intaglio) that can be felt with the fingers is used for the portraits and other major design elements.
- Highly intricate multi-coloured fine-line patterns and images appear on each side.
- Each notes serial number is printed twice, in black on the reverse of the note. A different font is used for each number. The alpha prefix of two letters is followed by two numerals representing the year of its production followed by a further six numerals. Under ultra-violet light, these serial numbers fluoresce.
- Under ultra-violet light the notes denominational patch showing the number 50 becomes visible on the back of the note.
Obverse:
David Unaipon (28 September 1872, Point Mcleay (Raukkan) Mission – 7 February 1967) was an Australian Aboriginal of the Ngarrindjeri people, a preacher, inventor and writer. Today, he is featured on the Australian $50 note in commemoration. David Unaipon was awarded ten patents, including a shearing machine, but did not have enough money to get his inventions developed. He was also known as the Australian Leonardo da Vinci for his mechanical ideas, which included anticipatory drawings for a helicopter design based on the principle of a boomerang and his research into harnessing the secret of perpetual motion.
Reverse:
Dame Edith Cowan (1861–1932) is best remembered as the very first woman member of the Australian parliament. She was, however, a true Australian pioneer in many ways being a social worker, feminist and politician.
Watermark:
With the introduction of the new polymer banknotes we saw the end of the customary Cook watermark. It was replaced with the Variable Optical Security Device in the bottom corner.
History
Unaipon took out provisional patents for 19 inventions but was unable to afford to get any of his inventions fully patented. His most successful invention (provisional patent 15 624), a shearing machine that converted curvilineal motion into the straight line movement which is the basis of modern mechanical shears, was introduced without Unaipon receiving any financial return and, apart from a 1910 newspaper report acknowledging him as the inventor, he received no credit.
Other inventions included a centrifugal motor, a multi-radial wheel and a mechanical propulsion device. He was also known as the Australian Leonardo da Vinci for his mechanical ideas, which included pre World War I drawings for a helicopter design based on the principle of the boomerang and his research into the polarisation of light and also spent much of his life attempting to achieve perpetual motion.
*All biographical details are taken from Wikipedia for education purposes only.
