"St John Ambulance Association" an early Tardis logo from Doctor Who. 

1965-1966 (The two Peter Cushing feature films)

First appearance, "Dr. Who and the Daleks" (1965);

Final appearance, "Daleks - Invasion Earth: 2150 A.D." (1966 - unless you count its cameo in 'The New Avengers' episode "Target" (1976) where the entire prop gets blown to bits)

This item is 3d printed using PLA. It is 3.75 in across and a very rigid item perfect for the Whovian in your life