Category:Structurae ID not in Wikidata

To add a Structurae ID, first find the ID by searching the Structurae website to find the appropriate structure listing. The ID should be given as "Structure-ID" under the Internal Information section. Then go to the Wikidata item and add the property "Structurae ID (structure)" (P454) with the value you found. Once the ID has been added, it may take some time before the article is removed from this category but it should be done automatically.