The BBC has a very interesting article dated 25 June 2015 by Chris Baraniuk entitled “The secret codes of British banknotes,” which discusses the so-called EURion Constellation (aka Omron rings) patterns’ role in deterring digital counterfeiting. Unmentioned in this article is that the simplest way to defeat this anti-counterfeiting featureRead More…

According to a press release, the Bank of Papua New Guinea has issued a new 20-kina note to commemorate the 40th anniversary of the country with a special overprint of the 40th Anniversary of Papua New Guinea Independence and the National Bird of Paradise image above the Parliament House. TheyRead More…

According to a press release, these 10-kina notes were issued to commemorate the XV Pacific Games with a special overprint of the XV Pacific Games logo in yellow, red, green, black and blue in color located above the Parliament House. They are physically smaller (135 x 70 mm) than theRead More…