Printed 'Sol Oil Lamp' advertising cover with large 'Locomotive' design on reverse franked with 10 x 1915 1c orange (SG 366) tied by GUAYAQUIL cds's dated 14 JAN 1917. Addressed to PORTUGAL, censored on arrival with printed black on white 'ABERTO PELA CESURA' censor strip tied by oval 'CENSURA No. 37' cachet in purple on reverse. Very attractive.