Optical Security Features on Banknotes

In the November 2024 issues of Holography News™, we covered banknotes featuring optical innovations from Samoa, Lesotho, Bermuda, and Cambodia.

Now, in line with the expanded focus of Holography & Optical Technology News, in this periodic round-up of new banknotes we are covering not just those new banknote issues with diffractive features, but all the optically variable security features.

New high denomination for Argentina 

Banco Central de la República Argentina (BRCA) has introduced a new high denomination 20,000 peso note, worth US$19 at the official exchange rate.

The note features Juan Bautista Alberdi (1810-1884), a politician and intellectual who influenced Argentina’s original 1853 Constitution. Security features include a watermark with the portrait of Alberdi and his initials, a RollingStar® i+ (Moon) thread, and a rendering of the National Constitution with SICPA’s SPARK Flow® that changes from magenta-to-green at certain angles.