Colombia # 618 and Airmail # C237 were issued for the 2nd National Philatelic Exhibition , Bogota . Murillo Toro & South America Map , and Castillo y Rada & Colombia Map . Cancellations - Dec 5 , 1953 , Bogota - Dec 5 , 1953 , II Exposicion Filatelica Nacional Bogota and backstamped with a Pictorial Post Horn cancellation Dec 5 ,1953 . All 3 postmarks are First Day of Issue . Addressed to : N V Overzeese Gas- en El Mij , Heemraadsingel 226 , Rotterdam , Holland . Return address on back : afz Peter van Gompel , Calle 59 N* 16 - 24 , Apartamento 401 , Bogota , Colombia , Sud America . 2 stamps on 1 cacheted , magnifying glass & stamp , First Day Cover . F-VF , See Scans . $1.00 shipping & handling to a USA address / $2.00 shipping & handling elsewhere . Combine S/H - Add 25 cents more for each additional item . Personal Checks and Money Orders must be drawn on a U.S. bank . Please view my other listings . Thank You . APS # 196666