Yugoslavia. (Montenegro). 1919. Stamp-less envelope headed 'Correspondence Militaire' written by 'Lieutenant van de Maeulbrouk, 365th Infantry, 305 Prado, Marseille' addressed to Lannoy, cancelled by 'Assistance aux Convalescents Militaires/ Marseille/ Consulat-General de Montenegro, 305 Avenue du Prado' double ring in violet on face. Very scarce item from the Montenegro Hospital in Marseille World War One.