https://www.let.leidenuniv.nl/Dutch/Ceneton/Facsimiles/TakamaGrilligers1658/source/TakamaGrilligers1658p52.htm
Henryk Takama - Bly-spel van de grilligers, naa de Franse visionaires - 1658 - 52/84
https://perspectif.org.uk/event/15209/penmaenmawr-visionaires
Penmaenmawr Visionaires - Event - WCB Perspectif Information Portal
Perspectif is Wales' primary database of services for blind and partially-sighted people.
penmaenmawreventwcbinformationportal