JFK & Jackie in a MG TD on their 1953 honeymoon either in Acapulco or the short stay at a San Ysidro Ranch in Montecito. Its a Series 1 TD, but not solid wheels. So that narrows it to a '51 or early '52. (thanks Doug!)

https://www.mgexp.com/forum/t-series-and-prewar-forum.46/the-john-f-kennedy-mg-td.3948409/

https://www.jfklibrary.org/learn/about-jfk/media-galleries/the-wedding-of-john-and-jacqueline-kennedy