Guilloche · 0.18 mm line
A rosette drawn from your count
Two families of contour lines cross into the banknote rose. It has one petal per country on the page, so it grows a petal each time a stamp lands.
Explo · Stamp book
A passport page where every security feature is made of your travels. Tap the page to stamp the next country, and move over it with the UV light on to read the invisible ink.
Guilloche · 0.18 mm line
Two families of contour lines cross into the banknote rose. It has one petal per country on the page, so it grows a petal each time a stamp lands.
Intaglio ink · sets in 600 ms
The stamp presses in and springs back, and the ink bleeds into the paper fibre before it sets. Each stamp carries the country, its code and the date.
UV ink · invisible by day
Under the light the paper goes dark and the cream ink shows: the flights between your stamps, their dates in microtext, and the Explo mark as a watermark.
OVD seal · two images
Two line screens at right angles. Tilt one way and you see the Explo mark; tilt the other and you see how many countries you have been to.
Explo turns every country you mark into a stamp, dated from your photos and trips. Sign in on the web to leaf through your visa pages, or get the app to fill them.
The traveller, stamps and dates on this page are examples.