{"version":"1.0","type":"rich","title":"The RAF Topcliffe \"Perfect Flying Saucer\" During Exercise Mainbrace","provider_name":"Umbralog","provider_url":"https://umbralog.com","html":"<iframe src=\"https://umbralog.com/embed/story/operation-mainbrace-sightings-raf-topcliffe-perfect-flying-saucer-1952\" width=\"560\" height=\"220\" style=\"border:0;max-width:100%\" loading=\"lazy\" title=\"The RAF Topcliffe &quot;Perfect Flying Saucer&quot; During Exercise Mainbrace on Umbralog\"></iframe>","width":560,"height":220,"cache_age":3600}