# optically variable ink

> anti-counterfeiting measure on banknotes and other official documents

**Wikidata**: [Q456378](https://www.wikidata.org/wiki/Q456378)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Optically_variable_ink)  
**Source**: https://4ort.xyz/entity/optically-variable-ink


## References

1. Freebase Data Dumps. 2013