Sorting through pics found this taken on Greek Island of Lesbos 2010.cannot remember exact location but facing seawards on the North cost. Would it have been WW2 or more recent defence against Turkey? .
Yes, a M-24 Chaffee tank and Google images have a few photos of the tank's rear. If you scroll though the photos here you will see it perfectly: M24 Chaffee (Light Tank, M24) Reconnaissance Light Tank The Greek military did retain for use a number of old weapons after the demise of the Soviet threat, although their "real" enemy was Turkey. We found some when visiting a fort on Crete, in the shade were 20mm AA cannons aplenty.
It’s a Chaffee , and wartime , they never built them postwar . They are dotted around the Dodecanese as static pillboxes . You can see them in the guns of navarone film on Rhodes