It took more than six months to spot the typo in Australia\u2019s most-widely used currency A$50, which came into circulation with new security features in October last year. The erroneous bank notes are in huge numbers of around 46 million and have been in circulation since October last year. The notes with the embarrassing typo are worth 2.3 billion Australian dollars, or 1.6 billion US dollars. The millions of new yellow and green notes carry the word \u201cresponsibility\u201d as \u201cresponsibilty\u201d. The Reserve Bank of Australia admitted to the typo and said the mistake would be rectified in the future print runs. The A$50 features Edith Cowan on one side and on the other side it has a portrait of distinguished indigenous author David Unaipon.The new A50$ has multiple security features including the maiden speech of Edith Cowan, first female member of the Australian parliament, which looks like a lawn in the background of Cowan\u2019s portrait. The quote carrying the word with missing \u201ci\u201d has been repeated several times in microscopic print. Cowan in her inaugural speech had said, \u201cIt is a great responsibility to be the only woman here, and I want to emphasise the necessity which exists for other women being here.\u201d However, it\u2019s not easy to decipher the Cowen\u2019s speech with naked eyes. It can only be read by magnifying glasses and that could be the reason that the goof-up easily escaped everybody\u2019s notice. This is not the first time when any country made an embarrassing mistake like this, earlier in 2005, the central bank of the Philippines had misspelled the name of then-President Gloria Macapagal Arroyo on the 100 peso notes at the time of Christmas. Unfortunately, they had spelled his last name as \u201cArrovo\u201d instead of \u201cArroyo\u201d. However, the central had to declare the notes legal tender and asked the public to treat erroneous notes as a collectors\u2019 items.