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Marks printed in the top corner of the banknote, on both sides, combine perfectly to form the value numeral. You can see the complete number when holding the banknote against the light.
The watermark is produced by varying the thickness of the paper. It appears when you hold the banknote against the light. If you put the banknote on a dark surface the light areas become darker. This effect is very easy to see in the value watermark.
The security thread is embedded in the banknote paper. Hold the banknote against the light - the thread will appear as a dark stripe. The word "EURO" and the value can be seen in tiny letters on the stripe.
Hold the banknote against the light. In the hologram you will see perforations which form the € symbol. You can also see small numbers showing the value.
