Illustrated 'Robbie Burns Scotch Whisky and Silver Top Dry Gin' advertising cover franked with 1939 5c brown and 1940 ½c scarlet TAX issue plus 1941 30c blue AIR issue (SG 535, 543 & 572) all tied by CALI cds's. Sent airmail to MEXICO, censored with plain white censor strip with 'Abierta por Censura No. 13015 Defensa Continental' handstamp in black and Mexican arrival cds on reverse.