1938 2d & 3d Postcard FDC, First Flight Cover, London to San Jose Costa Rica, London FS Air Mail Cancel

31st January 1938 2d & 3d Postcard FDC, First Flight Cover, London to San Jose Costa Rica, London FS Air Mail Cancel. Back stamped Correo Aereo Exter Jan Jose CR Feb.11 1938. Cover sent by Surface mail (sea) to New York then by air Pan American Airways Ltd FAM5. Route by Air New York - Miami - Havana - Cozumel Islands (Mexico) - Belize (British Honduras) - Managua (Nicaragua) - San Jose Cost Rica. As well first of issue of the stamps all First Day of the new 5d Postcard rate to Costa Rica. Very good condition.