Ranken dart
Ranken dart is an aerial bomb or ammunition model.
Overview
WWI British anti-Zeppelin bomb.
In detail
Ranken dart is an aerial bomb or ammunition model.
Sources
Each source is named with the standing the house places on it, so the evidence can be weighed rather than taken on trust.
reference work · Reputable secondary · Wikipedia
“Ranken dart”, English Wikipedia, consulted as further reading
Consult the sourcereference work · Reputable secondary · Wikidata
Wikidata, structured authority record Q7293234: Ranken dart
Consult the source