Greece. (French Post Office in Cavalle). 1914. Envelope addressed to Switzerland bearing Cavalle Yvert 13, 1p on 25c blue tied by Cavalla double ring (Pothion Type D), dated '8th Feb 14', routed via Salonique '9/2' (Pothion Type G) and Berne slogan arrival on reverse 12th Feb'.
Scarce 'Cavalle cancel with no 'Turquie' in lower double ring, in use after the Balkan War and also in Salonique.