Bayu Martanto, Head of Representative Office of Bank Indonesia (BI) for Bangka Belitung province, said the printing of rupiah banknote uses a security technique called rectoverso to preventthe banknote from being easily imitated or faked.

"Rectoverso is a special printing technique on a banknote which makes an image fill in for another image. An image at the same position is printed on the front and is printed on the back," Bayusaid. as quoted by Antara.

The image looks irregular if viewed from one side only, and the original image is only visible when the banknote is displayed in overlay. "In the rupiah banknote, the image will form the logo BI,short for Bank Indonesia. With the rectoverso technique, part of the image on the banknote will look irregular when viewed from one side, but will show a clear and intact picture when highlighted ordisplayed on overlay," he said.

Bayu continued that Rectoverso technique had been applied in printing rupiah banknotes since 1993, while Bank Indonesia's logo has been used in the technique since 2001.

In addition, BI has officially published eleven rupiah banknote denominations for 2016 edition, consisting of banknote bills for 100,000, 50,000, 20,000, 10,000, 5,000, 2,000, and 1,000denomination, as well as coins in the denomination of 1,000, 500, 200, and 100.

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BI Affirms Usage of Rectoverso Technique on New Rupiah Banknotes(www.en.netralnews.com/news/business/read/814/
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