# Ex libris "Nec Hercules contra plures"
**Wikidata**: [Q107721801](https://www.wikidata.org/wiki/Q107721801)  
**Source**: https://4ort.xyz/entity/ex-libris-nec-hercules-contra-plures-


## References

1. Q106425660
2. [Source](https://web.archive.org/web/20150130093326/https://www.nimoz.pl/upload/wydawnictwa/cenne_bezcenne_utracone/2012_1/12_Zakiewicz.pdf)
3. [Source](https://culture.pl/en/article/ex-libris-the-story-of-polish-bookplates)
4. [Source](https://witkacykatalog.com/pl/katalog/127010)
5. [Source](https://gazeta.sgh.waw.pl/historia/ekslibrisy-witkiewicza)