Description
Guatemala 2 x 3c, 5c, 10c + 1c Obligatory Tax stamp (SG 296, 310a, 311a, 368) on envelope marked in MS ‘Por Avion Via New York’, to London re-addressed to Brecon, cancelled Correos de Guatemala slogan machine d/s, with purple h/s ‘Affranchi par Avion …New York’; b/s Barnes SW13 30 December 1938