According to a press release dated 10 October 2011, on 14 October Bank of Mauritius issued revised 200-, 500-, and 1,000-rupee (US$6.90, 17.25, and 34.55, respectively) banknotes with new security features:

Multi Image Hologram upgrade for 200- and 500-rupee banknotes
This upgrade consists of a new feature which appears as a Multi Image design of a dodo and the face value as a new feature on the 200-rupee banknote, whereas the previous silver foil on the 500-rupee banknote has been replaced by a Multi Image design of a deer and the value of Rs500.

Depth Image Hologram upgrade for 1,000-rupee banknote
This feature replaces the current silver foil on the 1,000-rupee banknote and is an optically variable device. Classical holography allows a perception of depth by placing an image over a secondary plane apparently deep. On the hologram there is a registered central image of the Bank of Mauritius Tower and in the background the Multi Image feature showing the design of a key and the value of Rs1000.

Courtesy of Sami Kiuru, Claudio Marana, and Noteshobby.

Tags: Mauritius