Stampless cover from the Mexican Embassy in Asuncion, Paraguay with three line 'LEGACION DE MEXICO EN PARAGUAY CORRESPONDENCIA DIPLOMATICA FRANQUICIA POSTAL PANAMERICANA' cachet and circular 'LEGACION DE MEXICO ASUNCION, PARAGUAY 'Arms' cachet both in purple on front and ASUNCION machine cancel on reverse dated 2 ABR 1938 with lovely grey Art Deco 'Airplane & Ship' CINDERELLA label inscribed 'PLAN SEXENAL LAZARO CARDENAS COMMUNICACIONES 1934-1940' tied on reverse by additional strike of the embassy cachet. Addressed to ARGENTINA with arrival marks also on reverse. These labels were produced as propaganda for the six year plan of General Lazaro's government. Very attractive.