Statements (13)
| Predicate | Object | 
|---|---|
| gptkbp:instanceOf | gptkb:ancient_Roman_construction_technique | 
| gptkbp:characterizedBy | irregularly placed small stones | 
| gptkbp:developedBy | 2nd century BCE | 
| gptkbp:material | concrete tufa | 
| gptkbp:predecessor | opus reticulatum | 
| gptkbp:region | gptkb:Ancient_Rome | 
| gptkbp:replacedBy | opus reticulatum | 
| gptkbp:usedFor | walls | 
| gptkbp:usedIn | gptkb:Gothic_architecture | 
| gptkbp:bfsParent | gptkb:Roman_Walls | 
| gptkbp:bfsLayer | 7 | 
| https://www.w3.org/2000/01/rdf-schema#label | opus incertum |