The 20 euro of the Europa series arrives today, the third denomination of the new generation after the 5 and the 10 euro. Unlike its two predecessors, it brings a feature that had never appeared on a euro banknote before, and one that will define the look of the whole upper half of the series.

Europa-series 20 euro specimen banknote, with the transparent portrait window in the hologram.

The Europa-series 20 euro: at the top right, the transparent portrait window showing the face of Europa.

ECB specimen image.

The novelty is the portrait window. Held up to the light, a transparent window worked into the silvery stripe at the top right reveals the face of Europa, visible from both the front and the back. It is a device that is hard to reproduce yet immediate to check with the naked eye, and it is the first time it appears on a euro note.

The rest of the security language carries over from the 5 and 10 euro. The portrait of Europa is also in the watermark, the emerald number shifts colour and light when the note is tilted, and the paper keeps the protective coating that lengthens the life of the lower denominations.

The choice to debut the window on the 20 euro is deliberate. In many euro-area countries it is the note cash machines dispense most, common enough to reach almost everyone quickly, yet valuable enough to justify the most advanced feature. Testing the new window on such a widely handled denomination proves it in real conditions before it moves up the series.

That wide circulation again makes the launch demanding for payment infrastructure. Cash dispensers, vending and ticket machines, retail tills and banknote-processing equipment all have to read the redesigned note reliably, while first-series 20 euro notes stay valid and accepted for as long as they circulate.

The public message stays practical: feel the paper and the raised print, look at the watermark and the new portrait window, and tilt the note to check the hologram and the emerald number. The window quickly becomes the feature people learn to look for first.

For collectors, the 2015 note is a design landmark. The first Europa 20 euro notes carry Mario Draghi’s signature, and the portrait window it introduces is then reused on the 50 euro in 2017 and on the 100 and 200 euro in 2019, giving the higher denominations their shared signature look.

With the 5, 10 and 20 euro renewed, the Europa series now covers the most common everyday denominations. The 50 euro follows in 2017, and the 100 and 200 euro in 2019, completing a roll-out built one denomination at a time.