I know of only two notes that have thermochromic ink: the 100 Latu (2007) and 500 Latu (2008) banknotes of Latvia, pre-Euro.
Thermochromic means they have one area that changes colour with heat. Just the warmth of your finger will do it.
These are the notes:
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Both of those notes are very expensive, especially if you want it in UNC which is probably what is required to demonstrate the thermochromic effect.
I want to know what other notes have this effect. I would like to get a note that is affordable for my collection. Does anyone know of such a note?
Which elements of these banknotes were made using thermochromic ink? The point is, such ink itself isn't particularly expensive, and perhaps it was used throughout the entire series?
... Do you happen to know which G&D test notes have it?..
I found another G&D test note with FEEL: 2008 sample note features King Ludwig II of Bavaria. You can download the attached PDF file for more detailed information.
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Thanks very much!
As it happens, I ordered that note about a year ago from a guy on eBay, not because of thermochromic ink (because I didn't know it had any) but because of infrared features. The note was lost the mail and I never received it.
I have been looking for it ever since.
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