From the case:
Viking helmet (photo)
{"current_user":null,"step_through_annotations":true,"access":{"can_edit":false,"can_download":true,"can_toggle_annotations":true,"can_feature":false,"can_examine_pipeline_reports":false,"can_pin":false},"extraPropsURL":"/studies/88292/annotated_viewer_json?iframe=true\u0026lang=us"}
Viking helmet.
Case Discussion
Image credit: www.pixabay.com
No attribution required.
Modificaiton: cropped
https://pixabay.com/photos/helmet-vikings-shape-military-gear-3240222/