PHOTOLITHS (NOT ADOPTED) – 1ST INTERNATIONAL CONGRESS OF TOURISM – BUENOS AIRES 1957

TWO PHOTOLITHS OF NOT ADOPTED SKETCHS OF THE 1ª INT CONGRESS OF TOURISM – BS AS 1957 – THEY ARE SHOWN WITH THE ADOPTED STAMPS (GJ 1086/87). AT THE BACK SPECIAL STAMP OF MINISTERIO DE COMUNICACIONES – JUNE 26TH, 1957 – APPROX. MEASURES 110MM X 77MM